亚洲字字幕在线中文乱码_国产小视频福利免费视频_国语AV流畅在线观看_无码无卡高清免费视频A级

     
High density polyethylene
PDF 0
It is a kind of thermoplastic polyolefin produced by copolymerization of ethylene.
Product characteristics
It is a kind of white powder or granular product, non-toxic and odorless, with crystallinity of 80% ~ 90%, softening point of 125 ~ 135 ℃, and service temperature up to 100 ℃. It has hardness, tensile strength and creep property better than low density polyethylene. It has good wear resistance, electrical insulation, toughness and cold resistance. It has good chemical stability and insoluble in any organic solvent at room temperature.
Application instructions
It is widely used in gas transportation, water supply, sewage discharge, agricultural irrigation, transportation of fine particle solid in mine industry, oil field, chemical industry, post and telecommunication, etc, especially in gas transportation.
Application instructions
Energy and Chemicals