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工艺：冷加工，芯棒成型
尺寸：无缝: 1/2”－20” (DN15－DN500)
有缝: 1/2”－48” (DN15－DN1200)
标准：GB/T12459, GB/T13401, SH3408, SH3409;ASME/ANSI B16.9, B16.28, ASTM A403, MSS SP-43;DIN 2605, DIN2609, DIN2615, DIN2616;JIS B2311, JIS B2312, JIS B2313
壁厚：Sch5S-Sch80S; Sch10-Sch160; XS-XXS
材质：TP304; TP304H; TP304L; TP316; TP316L;TP321; TP321H; TP317L; TP310S; TP347H 904L
