日韩中文字幕在线-久久久久国产精品人妻aⅴ网站-美女又黄又免费的视频-av网站大全在线-国产精品视频六区-调教一区二区-另类天堂网-少女韩国电视剧在线观看完整-欧美人与动牲交片免费播放-永久国产-福利免费视频-爱爱视频在线免费观看-国内自拍第二页-欧美性生活网站-动漫成人无码免费视频在线播-天堂av免费看-欧美色偷偷-国产av丝袜一区二区三区-六月丁香婷婷色狠狠久久-亚洲人成网站18禁止

Zhejiang Shangyu Zhengkang Chemicals Co.,Ltd. is the provincial key welfare enterprise and the technology chemical enterprise with science, development, production and operation. The company is located in Daoxu town of Shangyu city in Zhejiang province and enjoys very convenient transportation.

The company stresses scientific management and technological innovation development, and emphasizes talent introduction and cultivation, and takes cooperation and communication with many domestic colleges and scientific research institutes and dedicates to introduction and digestion of domestic and external advanced technology. Our main products include assist series (textile printing dyeing, pretreatment assist, waterproof oil repellent, and others)