尺寸NPS2-32压力Class150-1500材料WCB,LCB,CF8,CF8M,CF3,CF3M,A105,LF2,F304,F316,F304L,F316L设计标准API608,API6D,BS5351,ASMEB16.34,ISO17292结构长度APIB16.10,API6D,DIN3202,BS2080连接标准ASMEB16.5,ASMEB16.47ASMEB16.25,EN1092测试标准ISO5208,API6D,API598结..