1. certificate:ISO9000;CCS,ASME,CE 2.material:carbon steel,alloy steel 3.the company has a history over 35 years YJZQ high pressure ball valve of accumulator mainly used between hydraulic systems and the accumulator,it provide cut-off function for the accumulator.female connect way MODELLL1L2L3BHH1H2H3DSWMGYJZQ-J10N794218.514355417.5409M18×1.5G3/8"9YJZQ-J15N86481916355417.5409M22×1.5G1/2"YJZQ- ...