DowCorning道康宁各种胶介绍
道康宁产品介绍
Shampoo with Dimethicone+Amino emulsion
含3% CE1689的香波有最好的湿梳型和柔软度.
16
提高头发颜色保护能力
Effect of Silicone on Color Retention on Hair (Delivered from a Rinse-off Conditoner Formulation)
含3% CE 1689 的香波有最好的干梳性
14
干的感觉
Sum (vote numbers from panelist)
45 40 35 30 25 20 15
10
5 0 Easy Dry Combing Shampoo with CE-1689 Dry Smoothness Dry Softness Shampoo with competitive emulsion
推荐用量:0.5~8%
有机硅乳液新产品介绍
Dow Corning® CE-1689 Smoothing Emulsion
Dow Corning® CE-1689 Smoothing Emulsion
INCI Name:
Dimethicone (and) Amodimethicone (and) Laureth-23 (and) Polyquaternium -10 (and) Laureth-4
Materials that prevent water loss protect hair fibers from heat damage.
香波 – 修复受损发质
100% 80% 150.0 60% 40% 20% 50.0 0% -20% Virgin Hair After Bleach Shampoo with 3% CE1619 0.0 100.0
道康宁产品Q2-5211
下，道康宁® Q2-5211超级润湿剂 可将表面张力降低至23达因/厘米 以下（见表1），在叶面蜡质层等 难于润湿的表面实现极快的润湿
和分散,从而，使除草剂、杀虫剂、 杀真菌剂和其他农药达到完全的
覆盖。
除快速润湿和分散外，道康宁® Q2-5211超级润湿剂还能大大提高 植物组织对农药的摄取。在除草剂 桶混时加入道康宁® Q2-5211超级 润湿剂可显著提高润湿效率，特别 是应用水溶性除草剂在阔叶草控 制。快速摄取可产生“耐雨性”— —由于除草剂已渗透到植物内部 组织，因而不会被雨水冲刷。图1、 2、3显示道康宁® Q2-5211超级润 湿剂在温室试验中对低浓度 Roundup Classic®2和Blazer®3除草 剂所起的效果。
道康宁的唯一保证，是产品满足发 货时的道康宁销售说明。
若道康宁违反该保证，您所能获得 的补偿仅限于退还购货价款或替 换不符合保证的任何产品。
道康宁特别声明，不作任何其他明 示或暗示对特定目的适用性或适 销性的保证。
道康宁声明不对任何间接或附 带性的损害负责。
图 1 表面活性剂对 Blazer 杀虫剂在绒毛叶上活性的影响
有关详情，请登陆 或咨询 当地的道康宁销售代表。
有限保证信息–请仔细阅读
此处提供的信息准确无误。然而， 由于使用本公司产品的条件和方 法非我们所能控制，本信息不能取
代客户为确保道康宁产品安全、有 效，并完全满足于特定的最终用途 而进行的测试。我们所提供的使用 建议，不得被视为侵犯任何专利权 的导因。
8.7
1.9
0.025％水溶液在 25℃（77ºF）.........
35.9
17.0
PE 润湿半径，0.2 毫升液滴
PE 表面能:22 达因，厘米
道康宁 导热胶
说明
性能
单组份；低流动性；灰色 单组份；低流动性；灰色 两组份；灰色；1:1 混合比率；中等粘度 两组份；灰色；1:1 混合比率
两组份；半流动性 单组份；灰色 单组份湿气固化粘合剂 单组份湿气固化粘合剂
单组份；灰色 流动性；单组份湿气固化粘合剂
单组份；不流动
两组份；半流动性
快速加热固化；高热传导性 快速加热固化；高热传导性 加热固化；良好的流动性 快速加热固化；较长的适用期；优异的流动 性；自粘合 较长的适用期；快速加热固化；自粘合 加热固化；中等热传导性；精炼型 可流动并具有中等的热传导性；快速表干 高粘度并具有中等的热传导性；UL 94V-1 等级；快速表干 加热固化；高热传导性 可流动并具有良好的热传导性，精炼型 (D4-D10 < 0.002)；快速表干 室温固化；中等热传导性；UL 94 V-0 等 级；精炼型；快速表干 较长的适用期；快速加热固化；自粘合
热传导性，瓦特/米-K/平方厘米 磅／平方英寸 MPa 公斤力/平方厘米 延伸率，% 线性热膨胀系数 , 微米/米 摄氏度或百万分之一 伏特/密耳 千伏/毫米 介电常数在100 赫兹 介电常数在100 千赫兹 损耗因子在100 赫兹 损耗因子在100 千赫兹 体积电阻系数，欧姆-厘米 产品在室温下，由生产日期 起的保质期，月
热传导灌封胶
外观 流动性液体；固化成柔性弹性体
特性 恒定的固化速率，与灌封厚度或密封程度无关；无需 后固化
可考虑的应用范围 灌封高电压变压器及传感器；安装基材与散热器；作为热 源和散热器之间的间隙充填材料
热传导复合物 类别 不固化；热传导硅酮膏
特性 高热传导性；低渗油率；高温稳定性
可考虑的应用范围 热源和散热器之间的间隙充填材料
道康宁部分树脂参数
道康宁® RSN-6018 树脂中间体Dow Corning® RSN-6018 Resin Intermediate彩色耐高温涂料用有机硅中间体组成:•硅羟基官能团的有机硅片状固体树脂。
典型物性：规格制订者：以下数值不可用于规格制订，制订本产品规格前。
请联络您当地的XIAMETER®销售处或客户服务部。
CTM 参数单位数值0176 外观片状固体0208 不发挥成分含量，在135℃%（min）98.0（275°F）下1.5g保持3小时0208 挥发性，在250℃（482°F）下1.5g保持3小时% 4.5 0077 二氧化硅含量，在165℃（329°F）下保持0.5小时，在800℃（1472°F）下保持1.0小时 %（min） 480540 25℃（77°F）下比重 1.250936 软化点℃（°F） 40（104）0553 分子量数量平均1200重量平均 2400理论二氧化硅残留量 % 50苯基/丙基比 2.7/1.0取代度 1.0稀释剂酮，酯，氯代溶剂，芳香烃和kahri丁醇值＞50的溶剂化合物应用:•道康宁RSN-6018 树脂主要用于养护及建筑涂料，电器涂料，卷材涂料和高温涂料。
•采用道康宁RSN-6018 树脂中间体改性有机树脂中间体共聚物的养护涂料，卷材涂料和建筑涂料，在暴露于室外多年后仍呈现良好的耐粉化性，并保持自身光泽和颜色。
•由有机硅-有机共聚物或冷拼物制备的高温涂料显示出优异的保光和保色性，可用在加热器、烤炉、焚化炉等高温设备上。
•道康宁RSN-6018 树脂中间体冷拼有机形成的混合物还可用在要求更好耐候性和耐热性的粉末涂料应用中。
特性和优点:•使配制的油漆具有良好的耐热性和耐候性，即：•—抗粉化和开裂••—保持光泽和颜色••含 30%道康宁®RSN-6018 树脂的铝颜料保护涂料，工作温度可达 425°C (797°F)。
道康宁DC791硅酮耐候胶说明书
道康宁DC791硅酮耐候胶——上海连宝特性和优点•是伸张、连接、周边密封和其它移动接口的理想密封材料•中性固化—适用于镀膜玻璃，镀锌钢板，砖石和其它多孔性，非多孔性材料•可将原接口宽度伸长/压缩50%•优良的耐候性、阳光、雨水、冰雪、臭氧或极端温度都不会造成不良影响•对大多数建筑材料和元件无须上底漆就能有良好的粘结性•容易使用—采用一般打胶枪随时挤出应用•优良的抗垂流性能，使用时产生的飘丝现象不明显组成•单组分，中性固化，室温水汽固化的硅酮密封胶应用•DOWSIL™ 791 硅酮耐候密封胶是专为普通玻璃装配和幕墙、建筑物外墙设计的高性能耐候防水产品。
产品说明DOWSIL 791 硅酮耐候密封胶是一种单组份，不垂流，中性固化密封胶，在大部分外界环境温度下能轻易地挤出使用，并借助于空气中的水份，与之反应固化形成耐久、有弹性的硅酮密封胶。
应用方法表面清理清除所有留存在接口处和装配部位的油脂、尘埃、水分、结霜，表面脏污、残留密封胶，玻璃装配附件和保护涂层等杂质及污染物。
注胶按照要求安裝背襯材料，玻璃墊塊，墊杆隔離物和膠帶。
接縫兩側區域應採用遮蔽膠帶，以確保密封膠密封線條的整潔美觀。
對非多孔性材料表面，通常不需要上底漆就有良好的黏結性，但是對於某些多孔性材料表面，可能需要上底漆以確保良好的黏結性，道康寧建議在工程開工前都應做黏結性測試。
使用時，將DOWSIL 791 矽酮耐候密封膠連續不斷地擠入並填滿接縫內(密封膠可以使用氣動膠槍和其他注膠設備進行施工）。
在密封膠表面尚未結皮時（打膠後的15 分鐘內），以適當的工具及力量將密封膠壓平於背襯材料和接縫表面上。
整平完畢後，立即將遮蔽膠帶撕掉。
颜色DOWSIL 791 硅酮耐候密封胶提供现成的8 种标准颜色：黑色、灰色、深灰、金属灰、古铜、岩灰、瓷白和白色。
也可以根据客户要求的特殊颜色。
储存当储存在30°C 以下原始未开封的包装时，DOWSIL 791 保质期为12 个月。
道康宁新型压敏胶中文说明资料
有限保证信息—请仔细阅读
此处包含的信息是基于诚信而提供 的，并被认为是准确的。然而，由 于使用本公司产品的条件和方法非 我们所能控制，本信息不能取代客 户为确保道康宁产品安全、有效、 并完全满足于特定的最终用途而进 行的测试。我们所提供的使用建 议，不得被视为侵犯任何专利权的 导因。
固化粘合剂 除去溶剂后，基材上会留下一层粘 而均匀的粘合剂薄膜。该薄膜的粘 合力，内聚强度以及初期粘力可以 通过热固化进一步加强。固化量的 大小取决于若干因素，包括催化剂 或设备的类型及基材。
在66°C (150°F) 温度下固化1分钟以 除去溶剂，然后在177-204°C (350400°F) 温度下固化 2 分钟，这种方 法可用于含过氧化苯甲酰粘合剂的 固化。
Dow Corning 是道康宁公司的注册商标。 全心助您创未来 是道康宁公司的商标。 XIAMETER 是道康宁公司的注册商标。
©2009 - 2013 道康宁公司版权所有。
参数
外观 稀释剂 活性成分 粘度 25°C (77°F) 闭杯闪点
单位
% cp °C °F
数值 半透明 二甲苯
55 -58 20,000 -80,000 24 75
描述
道康宁® 7388 粘合剂是聚二甲基硅氧 烷树胶和树脂的分散物。它用二甲苯 稀释，硅氧烷固体物含量为 55% 58%。
过氧化苯甲酰等催化剂与 道康宁 7388 粘合剂一起使用，可以 加快固化速度或允许在低温下固化。 使用催化剂还可以提高粘合剂的内聚 强度，提高其在基材上的附着性能。
催化剂 为了在较大的工作温度范围内保持初 期粘力，粘合强度和内聚强度的良好 平衡，正确固化是相当重要的。影响 固化的因素之一是催化剂。
Dow Corning 品牌胶水 封装剂双部分室温潮湿愈合类说明书
Information About Dow Corning ® brand Adhesive/SealantsSilicones and ElectronicsLong-term, reliable protection of sensitive circuits and components is important in many of today’s delicate and demanding electronic applications. Silicones function as durable dielectric insulation, as barriers against environmental contaminants and as stress-relieving shock and vibration absorbers over a wide temperature and humidity range.In addition to sustaining their physical and electrical prop-erties over a broad range of operating conditions, silicones are resistant to ozone and ultraviolet degradation, have good chemical stability and are available in a variety of useful forms as conformal coatings, encapsulants and adhesives.Dow Corning’s broad range of general purpose and specialty products offers you a choice of materials for your application needs.Dow Corning offers a variety of noncorrosive silicone products for electronic sealing, bonding and adhering applications. These adhesives generally fall into three cure types. The first group are moisture cure, generally meant for room-temperature processing. The second type(condensation cure) offers rapid room-temperature and deep-section curing. The third type is heat cure for rapid processing. All convert to durable, relatively low stresselastomers. Most will develop good, primerless adhesion to a variety of common substrates including ceramics, reactive metals and filled plastics.TYPICAL PROPERTIESThese values are not intended for use in preparing specifications.Specification Writers: Please obtain copies of the Dow Corning Sales Specifications for these products and use them as a basis for your specifications. They may be obtained from any Dow Corning Sales Office, or from Dow Corning Customer Service in Midland,MI. Call (517) 496-6000.HEAT CURE TIMESCURE CONDITIONSOne-Part Moisture Cure RTVThe one-part moisture cure adhesives (838, 839, 3165, 3145,3140 and 3-1744) are generally cured at room temperature and in a range of 30 to 80 percent relative humidity. Greater than 90 percent of their full physical properties should be attained within 24 to 72 hours depending on the product chosen. Materials and parts can be handled in much shorter times of about 10 to 120 minutes depending on the product chosen and the amount of material used per part. These materials are not typically used for highly confined or deep section cures. Materials will generally cure about 0.25 inch per seven days from any exposed surface. Cure progresses from the outer surface and is dependent on the moisture in the air. Working time is generally a few minutes to an hour for these products until a surface skin begins to form. Mild heat acceleration of the cure rate may be possible but temperatures above 60°C (140°F) are not recommended.Two-Part Room Temperature Condensation CureDow Corning ® Q3-6093 Silicone Adhesive is the only two-part condensation curing product. Once mixed, cure progresses rapidly at room temperature. Good strength is attained within an hour but full properties are not reached for anumber of days. Q3-6093 adhesive contains its own source of moisture and cure progresses evenly throughout the material.Deep section or confined cures are possible however (see “Reversion”). Working time is only a few minutes.Heat CureThe addition curing adhesives (577, 3-6876, 3-6611 and 3-6265) should be cured at 100°C (212°F) or above. The cure rate is rapidly accelerated with heat (see cure schedulesin table). For thicker sections or if voiding is observed, a 30 minutes pre-cure at 70°C (158°F) may reduce voids in the elastomer. Addition-curing materials contain all the ingredients needed for cure with no byproducts from the cure mechanism. Deep section or confined cures arepossible. Cure progresses evenly throughout the material.These adhesives generally have long working times.PREPARING SURFACESAll surfaces should be thoroughly cleaned and/or degreased with Dow Corning ®brand OS Fluids, naphtha, mineral spirits,methyl ethyl ketone (MEK) or other suitable solvent.Solvents such as acetone or isopropyl alcohol (IPA) do not tend to remove oils well, and any oils remaining on the surface may interfere with adhesion. Light surface abrasion is recommended whenever possible, because it promotes good cleaning and increases the surface area for bonding. A final surface wipe with acetone or IPA is also useful.Different cleaning techniques may give better results than others. Users should determine the best techniques for their applications.ADHESIONDow Corning silicone adhesives are specially formulated to provide unprimed adhesion to many reactive metals,ceramics and glass, as well as to selected laminates, resins and plastics. However, good adhesion cannot be expected on nonreactive metal substrates or non-reactive plastic surfaces such as Teflon ®, polyethylene or polypropylene. Special surface treatments such as chemical etching or plasma treatment can sometimes provide a reactive surface and promote adhesion to these types of substrates. Dow Corning ®brand primers (see “Primer Selection Guide”) can be used to increase the chemical activity on difficult substrates.2P5200 Red is a low-VOC alternative to 1200 Red.3P5204 is a low-VOC alternative to 1204.4The lower VOC value is for states and air quality management districts that have recognized volatile methylsiloxanes as VOC exempt.PRIMER SELECTION GUIDEThese values are not intended for use in preparing specifications.Poor adhesion may be experienced on plastic or rubber substrates that are highly plasticized, because the mobile plasticizers act as release agents. Small-scale laboratory evaluation of all substrates is recommended before production trials are made.In general, increasing the cure temperature and/or cure time will improve the ultimate adhesion.SUBSTRATE TESTINGDue to the wide variety of substrate types and differences in substrate surface conditions, general statements on adhesion and bond strength are impossible. To ensure maximum bond strength on a particular substrate, 100 percent cohesive failure of the adhesive in a lap shear or similar adhesive strength test is desired. This ensures compatibility of the adhesive with the substrate being considered. Also,this test can be used to determine minimum cure time or can detect the presence of surface contaminants such as mold release agents, oils, greases and oxide films.USEFUL TEMPERATURE RANGESFor most uses, silicone elastomers should be operational over a temperature range of -45 to 200°C (-49 to 392°F) for long periods of time. However, at both the low and high temperature ends of the spectrum, behavior of the materials and performance in particular applications can become more complex and require additional considerations.For low-temperature performance, thermal cycling to conditions such as -55°C (-67°F) may be possible, butperformance should be verified for your parts or assemblies.Factors that may influence performance are configuration and stress sensitivity of components, cooling rates and hold times, and prior temperature history.At the high-temperture end, the durability of the cured silicone elastomer is time and temperature dependent. As expected, the higher the temperature, the shorter the time the material will remain useable.COMPATIBILITYCertain materials, chemicals, curing agents and plasticizers can inhibit the cure of addition cure adhesives. Most notable of these include:•Organotin and other organometallic compounds •Silicone rubber containing organotin catalyst •Sulfur, polysulfides, polysulfones or other sulfur-containing materials•Amines, urethanes or amine-containing materials •Unsaturated hydrocarbon plasticizers •Some solder flux residuesIf a substrate or material is questionable with respect to potentially causing inhibition of cure, it is recommended that a small scale compatibility test be run to ascertain suitability in a given application. The presence of liquid or uncured product at the interface between the questionable substrate and the cured gel indicates incompatibility and inhibition of cure.MIXING AND DE-AIRINGUpon standing, some filler may settle to the bottom of the liquid containers after several weeks. To ensure a uniform product mix, the material in each container should be thoroughly mixed prior to use.1Clear only.2Gray only.3UL746C Approved.LISTINGS AND SPECIFICATIONSDow Corning Corporation Midland, Michigan 48686-0994Dow Corning and Sylgard are registered trademarks of Dow Corning Corporation.Teflon is a registered trademark of E.I. du Pont de Nemours Co.©2000 Dow Corning Corporation. All rights reser ved.Printed in USAAGP4781Form No. 10-911A-01Two-part materials should be mixed in the proper ratio (1:1or 10:1) either by weight or volume. The presence of light colored streaks or marbling indicates inadequate mixing.Automated airless dispense equipment can be used toreduce or avoid the need to de-air. If de-airing is required to reduce voids in the cured elastomer, consider a vacuum de-air schedule of >28 inches Hg for 10 minutes or until bubbling subsides.REVERSIONWhen two-part condensation curing materials with organo-tin catalysts, such as Q3-6093 adhesive, are cured in confinement (especially in deep section) and are later subjected to high heat conditions, can potentially revert back from a cured elastomer to a flowable polymer.Although this condition is unusual, parts using Q3-6093adhesive should be thoroughly tested in accelerated temperature conditions for this potential limitation.SOLVENT EXPOSUREWhen liquid or vapor solvent or fuel exposure can occur in an application, the silicone adhesives discussed in thisbrochure are intended only to survive splash or intermittent exposures. They are not suited for continuous solvent or fuel exposure. Testing should be done to confirm performance of the adhesives under these conditions.STORAGE AND SHELF LIFEShelf life is indicated by the “Use Before” date found on the product label.For best results, Dow Corning RTV adhesives should be stored at or below 25°C (77°F). Special precautions must be taken to prevent moisture from contacting these materials.Containers should be kept tightly closed and head or air space minimized. Partially filled containers should be purged with dry air or other gases, such as nitrogen.Dow Corning heat-cure adhesives should also be stored at or below 25°C (77°C). Containers should be kept tightly closed and kept in cold storage at all times to extend shelf life.LIMITATIONSThese products are neither tested nor represented as suitable for medical or pharmaceutical uses.PACKAGINGIn general, Dow Corning adhesives/sealants are supplied in nominal 0.45-, 3.6-, 18- and 200-kg (1-, 8-, 40- and 440-lb)containers,net weight. Not all products may be available in all packages and some additional packages, such as a bladder packs or tubes, may be available for certain coatings and package sizes.SAFE HANDLING INFORMATIONPRODUCT SAFETY INFORMATION REQUIRED FOR SAFE USE IS NOT INCLUDED. BEFORE HANDLING,READ PRODUCT AND MATERIAL SAFETY DATA SHEETS AND CONTAINER LABELS FOR SAFE USE, PHYSICAL AND HEALTH HAZARD INFORMATION. THE MATERIAL SAFETY DATA SHEET IS AVAILABLE FROM YOURDOW CORNING REPRESENTATIVE, OR DISTRIBUTOR,OR BY WRITING TO DOW CORNING CUSTOMER SERVICE, OR BY CALLING (517) 496-6000.WARRANTY INFORMATION – PLEASE READ CAREFULLYThe information contained herein is offered in good faith and is believed to be accurate. However, because conditions and methods of use of our products are beyond our control,this information should not be used in substitution for customer’s tests to ensure that Dow Corning’s products are safe, effective, and fully satisfactory for the intended end use. Dow Corning’s sole warranty is that the product will meet the Dow Corning sales specifications in effect at the time of shipment. Your exclusive remedy for breach of such warranty is limited to refund of purchase price or replace-ment of any product shown to be other than as warranted.Dow Corning specifically disclaims any other express or implied warranty of fitness for a particular purpose or merch-antability. Unless Dow Corning provides you with a specific,duly signed endorsement of fitness for use, Dow Corning disclaims liability for any incidental or consequential damages.Suggestions of uses should not be taken as inducements to infringe any particular patent.。
道康宁SE4450 道康宁高导热硅胶 北京
道康宁SE4450道康宁高导热硅胶北京
北京瑞德佑业 I8OOII3O865 王雅蓉
道康宁DOW CORNING SE4450
产品描述：
产品规格︰ SE4450
道康宁高导热硅胶SE4450，绝缘、导热，此材料提供了对产生热的电子零件，如IC、电晶体、处理器等具有极佳的导热与传热效果，有膏油脂状，有兼具导热与接着两种功能之橡胶状的接着剂，也有用于灌注用双组份型的产品的导热材料规格化垫片状等应用方式提供选择，产品耐高低温-50C--+200C以上。
产品特点：1、良好的接著力2、高热传导性2、固化时间短2、耐高低温(-60 ~ -250oC)
比重: 2.7；硬度: (JIS A) 85；抗张强度 50Kgf / cm2；延伸性 30 %；绝缘强度: 25KV / mmVolume Resistivity2 x 1014 Ωcm；接着力(铝): 30Kgf / cm2
热传导系数:4.5x10-3 cal / cm.sec.oC
主要市场︰ CPU之热导管
参考单价︰价优
付款方式︰另议
最小订量︰ KG
交货日期︰现货供应
认可标准︰ SGS,UL,MSDS；RTV 液態矽橡膠。
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TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTR ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
导热材料
➢ 导热粘合剂 ➢ 导热灌封胶 ➢ 导热凝胶 ➢ 导热硅脂 ➢ 导热垫片和薄
膜
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
PCB敷形涂料
➢ 电路薄层保护材料 • 应用方法选择
–浸渍 –喷涂 –选择性喷涂 –流动涂覆 –刷涂
纸张工业
Paper
机械工业 电子及高技术
Auto & Mechanics Electronics & AT
TIANJIN SONGYUAN ELECTRONICS CO., LTD
电子及高科技工业
Electronics & Advanced Technologies Industries
多晶硅生产 Poly-Silicon Production
半导体制造 Semiconductor Fabrication
微电子封装 Device Packaging
系统组装 Systems Assembly
TIANJIN SONGYUAN ELECTRONICS CO., LTD
灌封胶和凝胶
➢ 保护电路免受湿汽和污染物侵蚀 ➢ 消除元器件的机械应力和热应力 ➢ 提供电气绝缘保护
道康宁产品简介
TIANJIN SONGYUAN ELECTRONICS CO., LTD
工 业 应 用 Industrial Applications
建筑工业
Construction
橡胶工业
Rubber
纺织工业
Textile
生命科学
Life Science
化学工业
Chemical & Coating
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD
TIANJIN SONGYUAN ELECTRONICS CO., LTD