Determine the weight per milliliter by dividing the weight in g， 化工上的 求翻譯
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Determine the weight per milliliter by dividing the weight in g， of the quantity of liquid， which fills the pycnometer at 25°C， by the capacity expressed in ml， of the pycnometer at the same temperature.
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- 真—的—愛—你 2011-06-21 00:00:00
- 確定除以克的重量每毫升重量的液體量，填補比重瓶在25 ° C，在毫升的容量表示在同一溫度比重瓶。
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- zwqqzfj 2011-06-19 00:00:00
- 確定在同一溫度除以克的重量每毫升重量，數(shù)量的液體，它填補了比重瓶在25℃，在表達能力毫升的比重瓶，
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贊(14)回復(fù)(0)
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- Disper丶小呆 2011-06-19 00:00:00
- 確定除以克的重量每毫升重量的液體量，填補比重瓶在25 ° C，在毫升的容量表示在同一溫度比重瓶。
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贊(1)回復(fù)(0)
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- Airironman 2011-06-19 00:00:00
- 測定每毫升的重量，用克來計算重量，對于液體的數(shù)量，在25°C裝進比重瓶，比重瓶也保持在25°C，容量按毫升計算。
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贊(18)回復(fù)(0)
熱門問答
- Determine the weight per milliliter by dividing the weight in g， 化工上的 求翻譯
- Determine the weight per milliliter by dividing the weight in g， of the quantity of liquid， which fills the pycnometer at 25°C， by the capacity expressed in ml， of the pycnometer at the same temperature.
2011-06-18 02:54:15
434
4
- 化工專業(yè)英語求翻譯
- Hollow polymeric spheres have been attracting increasing interest because of their potential applications， which range from targeted drug delivery to advanced functional materi- als.[1，2] Because of their hollow core structure， such poly... Hollow polymeric spheres have been attracting increasing interest because of their potential applications， which range from targeted drug delivery to advanced functional materi- als.[1，2] Because of their hollow core structure， such polymeric spheres can encapsulate large quantities of guest moleculesD especially those spheres with functionalities within the empty coreDand release them at a later stage in a controlled man- ner. Although hollow polymeric spheres with dimensions in the micrometer and submicrometer regions are readily con- structedDby layer-by-layer deposition of polyelectrolytes onto a template core，[3±6] polymerizing monomers in lipid vesi- cles，[7，8] emulsion polymerization，[9，10] pH-induced micelliza- tion of a grafted copolymer，[11] and by the assembly of posi- tively charged polyelectrolytes and negatively charged nanoparticles[12]Dthe synthesis of hollow spheres 100 nm or less in size has only recently become the subject of research activity. Several different routes， such as the self-assembly of block copolymers in a selective solvent，[13，14] the deposition of polyelectrolytes on a decomplexable or soluble core，[15，16] and microemulsion (as well as miniemulsion) polymerization，[17，18] have been developed to form hollow polymeric nanospheres. Although some of these methods have been quite successful， these strategies require the core templates to be removed in order to create a hollow interior， or need large quantities of surfactants to form nanosized micelles. Furthermore， although the majority of the proposed applications of hollow nano- spheres or nanocapsules are concentrated in the biomedical field， most of the hollow polymeric spheres described to date are ill-suited for such purposes. Therefore， materials (in par- ticular for the surfaces of the hollow nanospheres) that are biocompatible， non-toxic， and sometimes also biodegradable， are highly desirable. Herein， we demonstrate a simple and di- rect method for fabricating hollow polymeric nanospheres with biocompatible and biodegradable macromolecules. In this approach， hollow polymeric nanospheres were formed in a completely aqueous system without the aid of surfactants， 展開
2013-11-13 05:23:50
487
1
- 求翻譯這段話，化工相關(guān)的，20分奉上
- ThethreelevelcontrollersareproportionalwithKC=2.ThepressurecontrollershavetheAspendefaultsettingsofKC=20and?I=12min.Thetwocompositioncontrollersaretunedsequentially... The three level controllers are proportional with K C = 2. The pressure controllers have the Aspen default settings of K C = 20 and ?I = 12 min. The two composition controllers are tuned sequentially. Since the CCxD loop is blending two streams， its dynamics are fast with the composition deadtime the only dynamic element in the loop. So the distillate composition controller CCxD is tuned with the bottoms loop on manual. Then the bottoms composition controller CCxB is tuned with the distillate loop on automatic. Deadtimes of 3 min are inserted in the loops to account for composition measurement delays. Relay-feedback testing and Tyreus-Luyben settings give controller tuning constants K C = 0.40 and _ I = 37 min for the CCxB controller and K C = 22 and _ I = 13 min for the CCxD controller. 展開
2018-11-17 07:21:42
304
0
- 求翻譯。。。。。。。。。。。
- During the preparation of the nano-products， these nano-units， such as nanoparticles， nanoclusters， nanowires and nanorods， can also self-assemble into the novel structural aggregates by several routes， including electron irradiation deposi... During the preparation of the nano-products， these nano-units， such as nanoparticles， nanoclusters， nanowires and nanorods， can also self-assemble into the novel structural aggregates by several routes， including electron irradiation deposition [19]， chemical vapor deposition [20]， laser vaporization-condensation [21]， charge transferring [22]， an organic reagent-assisted method [23]， solution-liquid-solid method [24] and catalytic vapor-liquid-solid growth [25]. With these routes， various nanoscale or microscale aggregates can demonstrate novel architectures， including tree-like， web-like， spherical， nanowire-like， network and fishbone-like aggregates. As a well-known method for producing the nanocapsules， however， arc-discharge has been rarely used to synthesize the aggregates self-assembled by the nanocapsules prepared simultaneously in arc-discharge. Nevertheless， it is possible that the arc-discharge can be developed into a new way to synthesize the aggregates. In the present work， we utilized arc-discharge technique with modified strategies， involving changing the hydrogen pressure， introducing gadolinium - aluminum alloy ingot as the anode and adjusting the elements percent of the anode according to their evaporation pressure， to synthesize a new type of nanocapsules， with intermetallic compound GdAl2 as core and amorphous Al2O3 as shell， which enlarge the family of the magnetic nanocapsules. At the same time， the regularly aligned three-dimensional macro-aggregates self-assembled by the nanocapsules without any template and catalyst were simultaneously synthesized in arc-discharge process. 展開
2008-06-09 10:41:10
398
1
- 幫忙翻譯 化工文獻 在線等 拒絕使用自動翻譯
- Nano-sized Beta zeolites， with a crystal size of 80–100 nm， were synthesized via surface wet method. The nano-sized Hbeta zeolites exhibit much higher activity and stability in the Friedel–Crafts acylation of anisole and toluene with acet... Nano-sized Beta zeolites， with a crystal size of 80–100 nm， were synthesized via surface wet method. The nano-sized Hbeta zeolites exhibit much higher activity and stability in the Friedel–Crafts acylation of anisole and toluene with acetic anhydride than theconventional zeolites of largeparticle size.The smallcrystalsize of nano-sized zeolitesmay bringon more accessible activesites and then enhance the catalytic activity. The exposed pore openings in nano-sized zeolites allow a fast desorption of heavy products from the catalyst and can then reduce the occupancy of active sites by the adsorption of products ，this can then alleviate the catalyst deactivation and improve the catalyst stability deactivation and improve the catalyst stability. 急用 在線等 拒絕用自動翻譯 因為這個誰都會 如果有超級好用的自動在線翻譯或軟件也可以推薦 展開
2009-05-31 04:30:04
457
4
- 幫忙翻譯下化工的英語。。用在線詞典翻譯部正確
- A reversed-phase ion-pairing high-performance liquid chromatography (RP-HPIPC) method for the separation of a complex mixture of heparin-derived oligosacchrides has been developed by a stepwise optimization of the mobile phase， in which the... A reversed-phase ion-pairing high-performance liquid chromatography (RP-HPIPC) method for the separation of a complex mixture of heparin-derived oligosacchrides has been developed by a stepwise optimization of the mobile phase， in which the concentration of ion-pairing reagent， mobile phase pH， and acetonitrile concentration were varied. The resolution of more than 30 oligosaccharide components was obtained， under optimized conditions， in an analysis time of less than 30 min. This represents the first RP-HPLC method that can separate a complex mixture of both small and large sulfated oligosaccharides in a single chromatographic step. The heparin-derived oligosaccharides， in this mixture， can also be separated under a second set of RP-HPIPC conditions using a volatile ion-pairing reagent， tributylammonium acetate， to aid in the recovery of individual sulfated oligosaccharides. Moreover， it was possible to replace sodium chloride gradient， required for eluting highly sulfated oligosaccharides， with a fixed， low concentration of a volatile salt， ammonium acetate， by utilizing an acetonitrile gradient. This solvent system might make it possible to directly interface this RP-HPIPC separation with mass spectral analysis. ??2003 Elsevier B.V. All rights reserved. Keywords: Ion-pairing reagents; Gradient elution; Oligosaccharides 展開
2010-06-01 05:49:52
691
4
- 求化學(xué)翻譯
- Graphite powder (<20m)， hydrazine， ammonia， N，Ndimethylformamide (DMF)， dopamine， 0.01M phosphate buffered saline (PBS; 0.138M NaCl， 0.0027M KCl， pH 7.4)， and ascorbic acid were purchased form Aldrich and used as received. Doubly disti... Graphite powder (<20m)， hydrazine， ammonia， N，Ndimethylformamide (DMF)， dopamine， 0.01M phosphate buffered saline (PBS; 0.138M NaCl， 0.0027M KCl， pH 7.4)， and ascorbic acid were purchased form Aldrich and used as received. Doubly distilled water was used throughout the whole experiments. The data of cyclic voltammetry (CV)， differential pulse voltammetry (DPV)， and electrochemical impedance spectra were obtained with a CHI 660 electrochemical workstation (CH instruments， Austin， TX). The electrochemical cell consisted of GCE (3mm diameter， Bioanalytical Systems， Inc.) as working electrode， Ag/AgCl (Bioanalytical Systems， Inc.) as reference electrode， and platinum wire as counter electrode. The impedance data were fitted to an appropriate equivalent circuit using ZsimpWin 3.0 software (Echem Software). The Raman spectra of graphene were obtained by micro-Raman system equipped with a homemade sample stage， a monochromator (SPEX 500 M)， and a CCD camera (Roger Scientific model 7346-001) with 514.5nm wavelength laser line. Graphene was characterized by field emission scanning electron microscope (SUPRA 55VP， Carl Zeiss) and atomic force microscope (NanostationII， Surface Imaging Systems). 展開
2012-03-12 11:00:58
425
2
- 文獻求翻譯
- Since the formation of a titanacyclopropane en route to cyclopropylamines can only occur with alkylmagnesium halides that contain a b-hydrogen atom， Grignard reagents without b-hydrogens appeared to be the most promising reagents for th... Since the formation of a titanacyclopropane en route to cyclopropylamines can only occur with alkylmagnesium halides that contain a b-hydrogen atom， Grignard reagents without b-hydrogens appeared to be the most promising reagents for the synthesis of primary tert-alkylamines from nitriles (Scheme 1). Thus propionitrile (1a)， phenylmagnesium bromide (2) and Ti(Oi-Pr)4 were chosen to optimize the reaction conditions. In the protocol for the synthesis of cyclopropylamines，10 Ti(Oi-Pr)4 is already present in the diethyl ether solution of a nitrile， before two equivalents of the Grignard reagent are added. As this did not appear to be optimal for the synthesis of primary tertalkylamines， the Grignard reagent was added before Ti(Oi-Pr)4. With 2 equivalents of PhMgBr， 0.1 equivalent of Ti(Oi-Pr)4， and 1 equivalent of propionitrile (1a)， the primary tert-alkylamine 8a was not formed at all. With an equimolar quantity of Ti(Oi-Pr)4， the amine 8a was produced in a low yield (11%) but with 1 equivalent of Ti(Oi- Pr)4 and 3 equivalents of the Grignard reagent 2， a 60% yield of 8a was obtained. Monitoring of the reaction by workup of aliquots of the reaction mixture showed that the first addition of 2 to form the N-magnesio derivative of the corresponding imine was rapid， whereas the subsequent second addition of the Grignard reagent 2 required heating under reflux for up to 24 hours. In tetrahydrofuran instead of diethyl ether， the amine 8a was formed in a very low yield， if at all. 展開
2012-08-31 01:19:05
451
5
- 求韓語翻譯
- 3? ??然 ?? ?? ???? ? ?? ???? ??? ?? ??? ?? &... 3? ??然 ?? ?? ???? ? ?? ???? ??? ?? ??? ?? ??? ?? ??? ?? ????、 求準確翻譯 PS 3元催化劑是安裝在汽車排氣管上的 展開
2012-12-19 08:48:48
450
1
- 求翻譯文獻
- Anionsarecommonlyfoundintheenvironmentandbiologicalsystems.Forinstance，fluorideiswidelyusedindentalcareapplicationsandexhibitsinhibitionofcertainenzymefunctions.1Inadditi... Anions are commonly found in the environment and biological systems. For instance， fluoride is widely used in dental care applications and exhibits inhibition of certain enzyme functions.1 In addition to playing a central role in biological regulation， chloride is also a major groundwater contaminant that can corrode steel and concrete.2 Thyroid hormone synthesis largely determines iodine content.3 Acetate is a possible tracer for malignancies and has been extensively investigated in prostate cancer and its metastases.4 Phosphate ion is biologically and environmentally significant.5 Cyanide exerts adverse effects on human health as well as environment at low concentrations. Determining anions concentration is thus of primary concern in many areas， including food processing， industry， and clinic analysis.6 However， hydrophilic anions， such as F- and Cl-， form strong hydrogen bonds with protic solvents. Therefore， developing fluorescent probes based on electrostatic interactions for anions functioning in polar protic solvents is both challenging and currently infeasible. 展開
2009-12-15 12:42:12
450
6
- 繼續(xù)求翻譯
- Ethylacetate(Quimis，p.a.)，methanol(Quimis，p.a.)，sec-butanol(Merck，HPLCgrade)，oleicacid(Merck，extrapure)，hydrogenperoxide(Interox，70%，w/waqueoussolution)，aluminumoxideforc... Ethyl acetate (Quimis， p.a.)， methanol (Quimis， p.a.)， sec- butanol (Merck， HPLC grade)， oleic acid (Merck， extra pure)， hydrogen peroxide (Interox， 70%， w/w aqueous solution)， aluminum oxide for chromatography (Fluka， 0.05–0.15 mm)， aluminum oxide for column chromatography (Acros Organics， activated， acidic， 0.1–0.5 mm)， aluminum tri-sec-butoxide (Aldrich， 99.99%)， oxalic acid (Synth， p.a.)， di-n-butyl ether (Fluka， >99%) and soybean oil (Cargill) were used as received. The solution of anhydrous hydrogen peroxide (24%， w/w) in ethyl acetate was prepared from aqueous H2O2 (70%， w/w) in ethyl acetate by azeotropic distillation with a Dean-Stark apparatus [14] The products were identified by gas chromatography–mass spectroscopy (GC–MS) using a Hewlett-Packard 5890 gas chromatograph equipped with a AT-Wax column and interfaced with a Hewlett-Packard 5971A mass spectrometer. Helium was used as the carrier gas. A similarly equipped Hewlett-Packard5890 gas chromatograph using nitrogen as the carrier gas and a flame ionization detector was used for product quantification， with the help of calibration curves. 展開
2009-03-18 10:12:57
457
3
- 高分求高手翻譯，不要機械翻譯
- Bimetallic dendrimer-encapsulated nanoparticles(DENs)are important materials，because they have demonstrated improvement in performance compared to the monometallic DENs in many systems when they are used as catalysts.This tutorial review fo... Bimetallic dendrimer-encapsulated nanoparticles(DENs)are important materials，because they have demonstrated improvement in performance compared to the monometallic DENs in many systems when they are used as catalysts.This tutorial review focuses on the recent research advances in bimetallic DENs with respect to their synthesis，characterization，and applications as catalysts.Bimetallic DENs can be made mainly via three routes:co-complexation，sequential loading，and partial displacement.The research in bimetallic DENs has been significantly promoted by the advancement of characterization instruments.The performances of bimetallic DENs as homogeneous and heterogeneous catalysts in organic synthesis have been compared with both monometallic DENs and their physical mixtures.It is concluded that the synergistic electronic effect in bimetallic nanoparticles enhances their catalytic activities. 能翻譯多少都可以的 展開
2009-03-24 13:04:22
368
2
- 幫忙翻譯一下化工方面的單詞 英語
- 堿值測定器試劑移液管錐形瓶酸式滴定管甲基黃溴甲酚綠混合指示劑鹽酸標準溶液摩爾/升酸式滴定管... 堿值 測定器 試劑 移液管 錐形瓶 酸式滴定管 甲基黃溴甲酚綠混合指示劑 鹽酸標準溶液 摩爾/升 酸式滴定管 展開
2010-01-17 06:38:39
674
5
- 求翻譯，謝絕機器翻譯
- 茶葉中農(nóng)藥殘留的檢測摘要有機氯農(nóng)藥的脂溶性強，容易在食物鏈中蓄積，Z終進入人體并對人體產(chǎn)生慢性毒害作用，動物實驗證實其有致畸、致癌作用。作為有機氯農(nóng)藥的替代品之一，擬除蟲... 茶葉中農(nóng)藥殘留的檢測 摘 要 有機氯農(nóng)藥的脂溶性強，容易在食物鏈中蓄積，Z終進入人體并對人體產(chǎn)生慢性毒害作用，動物實驗證實其有致畸、致癌作用。作為有機氯農(nóng)藥的替代品之一，擬除蟲菊酯類農(nóng)藥在農(nóng)業(yè)生產(chǎn)中得到了廣泛應(yīng)用。這類農(nóng)藥施用量較小、易生物降解、殘留期較短，對病毒、害蟲、雜草等具有很強的殺傷作用、但該類農(nóng)藥也有一定的蓄積性，部分對人有致畸、致突變的作用。目前國內(nèi)外茶葉中有機氯和擬除蟲菊酯類農(nóng)藥的檢測主要采用氣相色譜法（GC）和氣相色譜-質(zhì)譜法（GC-MS）。試樣中有機氯和擬除蟲菊酯農(nóng)YY有機溶劑石油醚提取，經(jīng)液液分配及層析凈化，用石油醚-乙酸乙酯（95+5）洗脫，收集凈化液，于旋轉(zhuǎn)蒸發(fā)儀上濃縮近干，石油醚溶解定容，氣相色譜-電子捕獲檢測器檢測，根據(jù)色譜峰的保留時間定性，外標法定量，檢測茶葉中有機氯農(nóng)藥六六六、DDT和擬除蟲菊酯類農(nóng)藥、氯氰菊酯、氯菊酯、氰戊菊酯、氟氰戊菊酯等。所建立方法的分析結(jié)果與外檢結(jié)果基本一致。這幾種農(nóng)藥在0.0125-3.5000μg/mL范圍內(nèi)線性良好，本方法的添加回收率在81.71%-112.41%之間，本方法具有溶劑使用量少、凈化效果好、操作簡便、快速、靈敏、準確、可靠等特點，用于貴州地區(qū)茶葉樣品中有機農(nóng)藥殘留測定，獲得較好結(jié)果?？蓾M足茶葉中六六六、DDT、、氯氰菊酯、氯菊酯、氰戊菊酯、氟氰戊菊酯等多種農(nóng)藥殘留檢測的需要。 關(guān)鍵詞：茶葉 氣相色譜 農(nóng)藥殘留 有機氯 擬除蟲菊酯 展開
2012-05-28 17:34:18
276
2
- 求翻譯英文文獻
- 2.2. Material Characterizations. A field emission scanning electron microscope (SEM， JEOL 6701F) was used to investigate the morphologies， particle sizes of the samples. Transmission electron microscopy and elemental compositions of the ... 2.2. Material Characterizations. A field emission scanning electron microscope (SEM， JEOL 6701F) was used to investigate the morphologies， particle sizes of the samples. Transmission electron microscopy and elemental compositions of the samples were determined by JEM-2100F (JEOL) coupled with an energy-dispersive X-ray spectroscopy (EDX， Phoenix) system. Wide-angle and low-angle X-ray powder diffraction (XRD) of the as-obtained samples were recorded on a Rigaku D/max-2500 with Cu Kα radiation (λ = 1.540 56 ?) operated at 40 kV and 200 mA. Raman measurements were performed using a DXR from Thermo Scientific with a laser wavelength of 532 nm. To calculate the pore size distribution and pore volumes， the nitrogen absorption and desorption isotherms were measured at 77.3 K with an Autosorb-1 specific surface area analyzer from Quantachrome. The content of N in N-doped porous carbon was determined by NHC elemental analysis using Flash EA 1112. Thermogravimetric (TG) analysis of S/C composite was performed on TG/DTA 6300 in an N2 flow to obtain the S content in the composite. A four-contact method was applied to measure the powder electronic conductivity of porous carbons. The powder sample was pressed to disk at 4 MPa with two stainless-steel plungers， whose resistance was measured by a Keithley 2400 digital multimeter in fourwire mode. The conductivity of the sample was calculated according to the resistance and the size of the disk. Information of the surface elements was obtained by X-ray photoelectron spectroscopy (XPS) performed on the Thermo Scientific ESCALab 250Xi using 200 W monochromatic Al Kα radiation. The 500 μm X-ray spot was used for XPS analysis. The base pressure in the analysis chamber was about 3 × 10?10 mbar. All reported data of XPS binding energy are calibrated based on the hydrocarbon C 1s line at 284.8 eV from adventitious carbon. Spectra were fitted with Lorentzian?Gaussian functions and smart background using Thermo Avantage software. 展開
2014-12-28 15:14:51
571
1
- 急求翻譯畢業(yè)論文
- 我是婦科專業(yè)博士，我們學(xué)校要求畢業(yè)論文寫成雙語，即要求把中文的翻譯成英文，現(xiàn)急求專業(yè)翻譯人士，請大家提供這方面信息，非常感謝... 我是婦科專業(yè)博士，我們學(xué)校要求畢業(yè)論文寫成雙語，即要求把中文的翻譯成英文，現(xiàn)急求專業(yè)翻譯人士，請大家提供這方面信息，非常感謝 展開
2018-11-26 09:40:00
304
0
- 什么是濃縮比，化工上用的名詞，有人知道嗎化工上濃縮
2017-10-31 02:04:18
994
1
- 求化工原理知識點提要
2010-12-14 12:46:34
577
2
- 高分求助化工外貿(mào)術(shù)語翻譯，關(guān)于高分子材料的，多謝
- MATERIAL DESCRIPTION LDPE SECOND PRIME GRADE CLEAN MFI ?C 2. 3 G/10MIN PET NEAR PRIME GRADE BOTTLE GRADE IV ?C (MIN) 82 (MAX) 84 G/10MIN LLDPE FILM SECOND PRIME GRADE TR PP SECOND PRIME GRADE PELLETS MFI- 8 ... MATERIAL DESCRIPTION LDPE SECOND PRIME GRADE CLEAN MFI ?C 2. 3 G/10MIN PET NEAR PRIME GRADE BOTTLE GRADE IV ?C (MIN) 82 (MAX) 84 G/10MIN LLDPE FILM SECOND PRIME GRADE TR PP SECOND PRIME GRADE PELLETS MFI- 8 - 20 G/10MIN HDPE SECOND PRIME GRADE PELLETS CLEAN MFI- 2- 2.5 G/10MIN HDPE SECOND PRIME GRADE PELLETS 5% POWDER MFI- (MIN) 3 (MAX) 4 G/10MIN MIXED PP/HD SECOND PRIME GRADE CLEAN MFI- (MIN) 3 (MAX) 5 G/10MIN PET SECOND PRIME GRADE PELLETS TRANSPERANT MFI- (MIN) 57 (MAX) 60 G/10MIN PET SECOND PRIME GRADE LUMPS REGRIND WHITE LDPE REPROCESS FILM GRADE PELLETS BLACK LDPE REPROCESS FILM GRADE SORTED PP INJECTION GRADE PELLETS BLACK PP INJECTION GRADE PELLETS WHITE HDPE INJECTION GRADE PELLETS SORTED HDPE REPROCESS BLOW GRADE PELLETS PTA POWDER WHITE PTA POWDER YELLOWISH HDPE BLOW BOTTLES BALED (TR+WHITE) HDPE BLOW BOTTLES BALED MIX COLOR PET REGRIND LUMPS MIX PET PREFORM AS IT IS GREEN PET PREFORM AS IT IS MIX COLOR PET FLAKES HOT WASHED GREEN PA BALED PP RAFFIA BAGS GOOD LDPE FILM BALED BLACK MIX ABS REPROCESS PELLETS PS LUMPS REGRIND YELLOWISH PS RECYCLED GRANULES SORTED COLOR PS REGRIND MIX COLOR PS REGRIND TRANSPARENT PS REGRIND WHITE COLOR PC WATER BOTTLES REGRIND BLUE PET BALED TRANSPARENT PET BALED GREEN PVC RIGID REGRIND PIPE GRADE GREEN PVC RIGID REGRIND PIPE GRADE MIX COLOR PVC REGRIND PROFILE GRADE WHITE PVC SHEETS MIX COLORS PVC SHEEETS TRANPARENT 展開
2011-10-07 03:51:30
392
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