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对接焊管啮合名称:L / R&& S / R弯头,TEE,同心和偏心*****弯头& *****,CAPS,ETCSTASTARD:ISO,ANSI / ASME,MSS,JIS,DIN,BS等:碳钢&不锈钢范围:1/2&#039&#039 ---- 48&#039&#039&#039Thickness:STD,XS,XXS.SCH10,20,30,40,60,80,160SLEED:A106B,A106C焊接: A53,API5LB,X42,ERW,DSAW 90度弯头,45度弯头