Steel Pipe (API 5L/ASTM A53) ZHEJIANG BESTSUPPLIERS IMPORT & EXPORT CO., LTD. Base Info Model NO.:API 5L,ASTM A53Type:WeldedTechnique:ERWSurface Treatment:NoUsage:Machinery IndustrySection Shape:RoundTrademark:QIANYIOrigin:China Description Pre:Carbon Seamless Steel Pipe (API 5L X52 140) Next:ERW Pipe for Construction