This Steel casting Mining bits is used as a bracket in winning equipment, export to New Zealand. The Annual export quantity is 20,000 pieces. It have a high request of the surface hardness, otherwise it can’t be used. We provide 100% quality inspection fo
The side entry trunnion mounted ball valve has been designed two piece body type or three piece body type and with two floating seats, which are movable under the pressure of medium. Under the bottom of seats, seat pre-loading springs are positioned to en