标准规范APPLICABLE STANDARDS: 设计标准(DESIGN):ASME B16.34, API 608 壁厚(WALL THICKNESS):EN 12516-3 管螺纹接端(PIPE THREAD)KV-M30: ASME B1.20.1, BS21 DIN 2999/259 ISO 7/1,ISO228/1 JIS B 0203 对焊端(BUTT WELD)KV-M31: ASME B16.25(?B2 SCH 40) ?B2 Available in Sch 80 套焊端(SOCKET WELD)KV-M32:ASME B16.11 法兰端(FLANGE END)KV-M3F: ASME B16.5 CLASS 150/300 EN 1092-1 PN10-40 JIS B2238 10K/20K 检验与测试(INSPECTION & TESTING):API 598, EN 12266