日韩爽爽中文字幕蜜臀在线观看_亚洲成av人片高潮喷水色欲_亚洲不卡性感美女免费视频_韩日高清无码在线色亭亭2019

Your position: Products
PVC brightening agent

LV-1LV-1PVC profile brightening agent is copolymer of styrene, acrylonitrile and acrylate. It can reduce plasticizing temperature and improve material liquidity.

 


Last : Low temper... 】 【[ Back ]】 【 Next :