... Type: Seamless Steel Grade: 300 Series Certification: ISO Welding Line Type: ERW Thickness: 1mm-60mm Outer Diameter: 8mm-830mm Process ... Ability: 800 Metric Ton/Metric Tons per Da Usage:Line Pipe,Casing And Tubing,Fluid Pipe,Water Delievery,Heating ... Test,Metallographic Examination Final Product Test:Hydraulic Test, On-line and off-line Ultrasonic Test,Tensile Test ,Yeild Strength,Elogation,Hardness ...