楔式闸阀 GATE V ALVE 口径 SIZE:DN15-900 NPS1/2"-36" 压力 PRESSURE:PN16-260 CLASS150-1500 材料 MATERIAL : DN15-50(NPS1/2"-2"):A105,LF2,F11,F22,F5, F304,F316,F304L,F316L DN50-900(NPS2"-36"):WCB,LCB,LCC,WC6,WC9,C12, C5,CF8,CF8M,CF3,CF3M 设计制造标准 DESIGN AND MANUFACTURE : GB/T12234,ASME B16.34,API 602,API 600, API6D,BS1414,BS5352 结构长度标准 FACE TO FACE: GB/T12221,ASME B16.10,DIN3202,BS2080 连接端标准 END CONNECT