少妇搡BBBB搡BBB搡造水多,欧美日韩一区二区三区自拍,一本一道精品欧美中文字幕,无码人妻一区二区三区一

Welcome to Qinhuangdao Tianzi Chemical Industry Co.,Ltd Website!
????
Tel:+86-335-5978826
Address: Green Chemical Industry Garden, Lulong Economic Development Zone, Qinhuangdao City, Hebei Province, China.
Mobile:+86-15227250682,
+86-13313337629
E-mail:tzchem@163.com;
tzchem@tianzichem.com
tzsales@tianzichem.com
???? > ?? ?????
??? ???? ??? ?????
??: ???  ???? ??? ?????
???: CH5N3.HCL
???: 95.53
CAS NO: 50-01-1
??: ?????, ?? 184°C。
??:

??, ??, ?? ? ?? ???? ???? ??? sulfanilamide? ??? ????  ????? ??? ????? ???.

??:  25kg.
??????
?? ??? 1?? 2??
?? ????? ????? ?????
??%≥ 99.5 99 90
???%≤ 0.1 0.3 0.5
?????%≤ 0.05 0.1 0.14
??%≤ 0.3 0.5 0.5
???%≤ 0.05 0.15 0.2
?? 184°C 184°C 182°C



Copyright(C)2017,Qinhuangdao Tianzi Chemical Industry Co.,Ltd All Rights Reserved. ?Supported by ?ChemNet?ChinaChemNet?Toocle?Copyright Notice
Tel:+86-335-5978826 Fax:+86-335-5978826 E-mail:tzchem@163.com; Contact: Mr liu +86-13931486198