1) Standard: GB14976/95/13296 ASTM A312/269/213 , German standard:DIN , Japanese standard standard jis
2) Outside Diameter: 1/8"--20" (6mm-530mm)
3) Wall Thickness: 5S-160S (1mm- 40mm)
4) Surface: acid pickling / polishing
1) Product use: ( oil, chemical, machinery, paper, ship, aircraft )
2) Use categories: fluid pipe, boiler tube, heat exchanger boiler tube
3) Product certification: ISO-9001 PED 91/23/EC