尺寸 1/2”~60” (DN15~DN1500) 压力磅级 150Lb~2500Lb 材质 碳钢:20#, 16Mn, ASTM A105, A350LF2, A350LF3; 不锈钢 :ASTM A182 F304, F304L, F304/304L, F316, F316L, F316/316L, F317L, F321, F321H,F347, F347H; 合金钢:ASTM A182F5, F11, F22, F91, 双相钢:ASTM A182F51,F41,F53 管线钢:ASTM A694 F42, F46, F48, F50, F52, F50, F60,F65, F70 特殊钢: 蒙乃尔,双相钢,合金钢, 904L 等等 主要制造标准 ASME B 16.5,ASME B16.47A/B,EN1092-1,ISO7005-1,SH3406,GB13402,GB9112~9124....