Specifications: 1)Seamless,ERW 2)OD:3/4"-48" 3)THK:SCH40,SCH80,SCH160, ... )Standard:ASTM,DIN,JIS SpecificationCarbon steel pipe seriesStyle SMLS steel pipe 1/4"- 28"ERW steel pipe 1/2"-24"SSAW/LSAW ... ,317/ 317L, 321 , 347, 309,310 Alloy steel pipe seriesStyle SMLS steel pipe 1/8"-24"MeterialA-335/A199 Gr.P1 ... ,Shijiazhuang,ChinaTel 86-311-66619538Fax 86-311-66619527Skype ID brenda5469 SMLS steel pipe