免费观看俩人交性视频,噼里啪啦国语在线观看高清资源,久久精品192.168.0.1,国精品无码一区二区三区左线

中文版 English Korean

??:+86-573-82813639, 83621335
??:+86-573-82813637
???:? ? +86-13605839392
??:[email protected]
???:http://www.hbcslcc.com

????

?? p-???????(PTSE)

 

[Product name]:
Ethyl P-toluenesulfonate
[Structural Formula]:
[Molecular Formula]:
C9H12O3S
[CAS NO]:
80-40-0
[Packing]:
200kg net iron drum; Loading:16mt; Size:58cm*90cm
Specification:
Appearance White & yellowish liquid
Purity 98.0% min
Residue PTC 0.2% max
Free acid 0.2% max
Water 0.5% max
Residue EtoH 0.2% max

Hazardous Information: Non-DG

 

[ CLOSE ]
Copyright(C)2012, ??? ????? ?? All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle