... ,Materials(AA-HH) 4,API 6A,16C,Q1 Well head equipment covers all the preasure range(2000PSI-20000PSI),tempreture(k-y ... quality by utilizing intelligent product pressure test system and gas leakage detection equipment; and for the test of valves, butterfly valves,safty valves ... pipe hangers, here comes a most complete set of PR2 test equipment in China certified by an international third party.HH grade ...