欧美性videostv极度另类_男男互搞视频_日日射日日干_h肉工番全彩

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.H3NO3S
???: 156.17
CAS No.: 50979-18-5
??: ?????. ??128℃。PH 7.0-9.0
????:

90%??(??95%),PH?7.0-9.0(4%???.

?? ? ????1.0%??.
?????: ?25kg. 500kg
??????:
???? ??
???? ?? ??? ≥90%(??95%)
??? ???? ≤1.0%
PH?(4% ???) 7.0~9.0

 


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