... price 3.delivery promptly 4.high quality servicedouble ram BOP1Scope of CapabilityFZ18-35 Ram BOP, which is designed and manufactured specially ... able to close wellhead safely, quickly and reliably in a short time with corresponding control system. It has several pipe ... , cylinder bonnet, piston, rod, locking shaft, sealing element and ram assembly and hinge. Its working principle is: the high pressure ...