久久国产一久久高清-久久国产一区二区-久久国产影视免费精品-久久国产影院-国产激情视频在线观看-国产激情一区二区三区

Aerospace More refined and lighter, for aerospace >

Architectural field The flexibility of fluorine film gives the building more curved surface and beauty; Flame retardant of fluorinated wire makes high level wiring safer. >

Medical instrument Fluorine plastics play an important role in medical equipment industry due to its good physical and mechanical properties and chemical stability. >

Electronic and electrical Special plastics are indispensable materials in electronic and electrical industry and play an important role in the application of electronic and electrical industry. >