法兰截止阀型号工作压力公称压力主要结构尺寸PNLDHJ41H-64P106.4170100159J41H-64P156.4170105165J41H-64P206.4190125195J41H-160P1016170110165J41H-160P1516170110195J41H-160P2016190130165J41H-100C1010170110195J41H-100C1510170110165J41H-100C2010190130195标签：  镇江市球阀针型阀截止阀 镇江市球阀针型阀截止阀厂家江苏镇江市镇江市球阀针型阀截止阀厂家供应球阀针型阀截止阀