国产中文字幕乱人伦在线观看,久久永久免费人妻精品,日韩免费视频一一二区,国产片免费福利片永久

About Us

Shenyang Shengda Chemical Co., Ltd. is a chemical enterprise engaging in R&D and production and is a production and sales-oriented enterprise that specializes in chemical reagents and fine chemicals. It mainly engages in producing chemically pure, analytically pure, indicators, biological stains, dyestuffs, fine chemical materials, inorganic sales and other products, which are widely used in chemical analysis, pharmaceutical, electronics, photosensitive materials, textile printing and dyeing, and other industries. Leading products are thymolphthalein, o-Cresolphthalein, phenanthroline, bromophenol blue, bromocresol green, bromcresol purple, bromothymol blue, methylthymol blue, calcein, Giemsa stain, Coomassie brilliant blue, phenol red, murexide, nickel reagent, Litmus, fluorescein sodium, methylthioninium chloride, basic violet 3, phenolphthalein, and etc. Shengda has established independent production base on the periphery of Shenyang. At present, the marketing model taking production base as production center, Shenyang as sales Center and radiating China has been formed.

 

Adhering to principle of surviving on quality, developing by service, the company positively attracts talents and cooperates with scientific research institutions, universities and colleges. Based on modern enterprise management model, massive investment in new technologies and perfect service philosophy, we can offer the clients favorable services.

 

The company adheres to tenet of "integrity-based and mutual benefit" and operation philosophy of "quality first and client top", and it would like to make friends with people all fields and offer you excellent services.

 

Corporate culture: loyalty, learning, innovation and integrity!

Copyright(C)2017,Shenyang shengda Chemical Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice
免费无码成人AV片在线| 国产宅男宅女精品A片在线观看| 欧美大肥婆bbbww| 无码一区二区三区免费| 亚洲国产成人无码精品| 国内精品视频自在欧美一区| 国产69囗曝吞精在线视频| 999久久久九九九祝福语| 一本久久伊人热热精品中文| 办公室被吃奶好爽在线观看视频 | 免费无码一区二区三区蜜桃大| 日韩码一码二码三码区别| 国产精品白丝喷水在线观看| 无码免费一区二区三区免费播放| 欧美日韩国产图片区一区| 成人综合网站| 一个人看的WWW免费视频在线观看| 久久精品无码中文字幕老司机| 日本高清在线视频WWW色| 亚洲成熟丰满熟妇高潮xxxxx | 国产玖玖玖九九精品视频靠爱| 人人色在线视频播放| 欧美成人精品高清视频在线观看| 亚洲日韩精品欧美一区二区| 国内永久福利在线视频图片| 麻豆人妻无码性色av专区| 亚洲综合色无码| 久久99热只有频精品6狠狠| 高清一区二区三区免费视频| 无码成人一区二区| 亚洲精品久久中文字幕| 亚洲综合熟女久久久30p| 手机在线看永久av片免费| 老司机67194精品线观看| 国产乱码一二三区精品| 97色伦午夜国产亚洲精品| 欧美 变态 另类 人妖| 免费a级毛片无码a∨免费软件| 白丝兔女郎m开腿sm调教室| 内射合集对白在线| 蜜臀av性久久久久蜜臀aⅴ|