Send Inquiry
1.blow-out proof stem2.investment casting body
3.Pressure blance hole in ball solt
4.all kinds of thread available
5.locking device handle available
6.design acc:ASME B16.34
7.thread acc:ansi b 1.20.1
8.inspection&testing acc:api598
Skype:amy.chen518
QQ:1711394790




