葡萄园大酒店论坛 --- Valve stem
Nov 14, 2012 ... A valve stem is a self-contained valve which opens to admit gas to a ..... ball as its name suggested, that it is used in trunnion mounted ball valve. ... fully welded ball valve, top entry ball valve, metal seated ball valve, orbit ball ...
Address
Tel
0514-84663497
Website
Date
|
Product Description
|
Supplier
|
Money
|
Quantity
|
Weight
|
---|
ptydjd Contacts: Tel: 0514-84663497 Website: ptydjd.com
ptydjd's website is ptydjd.com