1.ISO 9000 certificate system 2.carbon steel,stainless steel 3.has a history of 32 years QJH high pressure ball core valve of accumulator mainly used between hydraulic systems and the accumulator,it provide cut-off function for the accumulator.female connect way modelBLNL1L2HH1H2H3DNSWQJH-6NL306836163612309M16×1.59QJH-10NL357642175417.5409M18×1.59QJH-15NL428848205821.544M27×2QJH- ...