●高Kv值,低壓降 ●堅(jiān)實(shí)和進(jìn)程的設(shè)計(jì),重量輕 ●模塊化設(shè)計(jì)理念,3組尺寸的隔膜片與閥帽適用于6種閥體尺寸 ●閥位指示桿 ●隔膜片易于更換