久久亚洲AV无码精品色午夜麻豆,资源一区二区三区四区,亚洲欧美日韩中文重口味,欧美久久黄色毛片视

Science for a better life
Home / Product / PEG Polyether Polyols
  • CHPEG-3000
    The polyether polyol CHPEG-3000 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator and ethylene oxide under the action of an alkali metal catalyst. The product is a polyether without BHT and amine and has the characteristics of low K +, low CPR, etc.
    More
    Put away
  • CHPEG-2500
    The polyether polyol CHPEG-2500 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator and ethylene oxide under the action of an alkali metal catalyst. The product is a polyether without BHT and amine and has the characteristics of low K +, low CPR, etc.
    More
    Put away
  • CHPEG-2000
    The polyether polyol CHPEG-2000 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator and ethylene oxide under the action of an alkali metal catalyst. The product is a polyether without BHT and amine and has the characteristics of low K +, low CPR, etc.
    More
    Put away
  • CHPEG-1500
    The polyether polyol CHPEG-1500 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator and ethylene oxide under the action of an alkali metal catalyst. The product is a polyether without BHT and amine and has the characteristics of low K +, low CPR, etc.
    More
    Put away
  • CHPEG-1000
    The polyether polyol CHPEG-1000 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator and ethylene oxide under the action of an alkali metal catalyst. This product is a BHT-free, amine-free polyether with low K + characteristics.
    More
    Put away
  • CHPEG-600
    The polyether polyol CHPEG-600 is prepared by the ring-opening polymerization of a compound containing an active hydrogen group as an initiator and ethylene oxide under the action of an alkali metal catalyst. The product is a polyether without BHT and amine and has the characteristics of low K +, low CPR, etc.
    More
    Put away
久久调教电影| 黄色电影久久精品| 久久伊人蜜桃av一区二区| 日韩激情国产激情| 久久视频韩国| 日本韩国特黄免费录像| 久久毛片精品99久久久久久久久| 国产精品欧美极品日韩色综合| 啪啪啪日本一区| 香蕉伊人Av| 日韩欧美一区二区三| 国产精品久久青青草| 美女被爽c白虎视频| 伦理日韩国产一区| 久久特级电影| 西和县| 福利地址一区| 亚洲午夜pppp在线观看| 咪咪碰免费视频| 福利一区二区不卡| 乱人伦激情三十分钟| 一本道影视一区二区三区| 韩国三级人人操| 91白色国产| 欧洲激情无码| 亚州AA在线观看| 亚洲Aⅴ天堂Aⅴ天堂无码| 麻否一区二区| 国产99久久久久久免费看| 美日韩一级在线| 最新国产乱码一区二区三区APP| 午夜伦理视频在线观看| 激情欧美综合五月| 婷婷福利在线| 69久操一区二区| 欧美久久青青| 国产日韩欧美 一区二区| 国产链接日韩欧美| 一区二区三区,在线| 日本一区无毛久久精品| 婷婷五月激情亚洲一区|