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長(cháng)半徑彎頭

彎頭、三通、異徑管、管帽和彎管?-尺寸:??”~60”?-壁厚等級:sch5,10,20,30,40,60,80,100,120,140,160,STD,XS,XXS,sch5s,10s,40s,80s