... (2000PSI-20000 PSI) 2.Tempreture (K-Y) 3,Materials(AA-HH) 4,API 6A,16C,Q1 Well head equipment covers all ... the preasure range(2000PSI-20000PSI),tempreture(k-y),material(AA-HH),PSL(1-4) AND PR(1-2) grades of API ... test equipment in China certified by an international third party.HH grade product series are marked with its high resistance to ...