欧美另类极度残忍拳头交-2021最新久久久视精品爱-国产美女在线观看-aaaa欧美高清免费|www.1j1l.com

Product: 1,1-DICHLORO-1-FLUORO-ETHANE(R141B)
Purity:99.83%
Moisture: 0.002%
Vinylidenechloride and dichloro acetylene: 0.01%
Acidity(≤%, as HCI): 0.0001
Residue:0.001%
Grade: 1

Packing: 250kg/iron drum

主要用途：可做清洗劑和發(fā)泡劑，替代R11和R113。