... Roller Extrusion equipment line. 3.Certification:CE, ASTM Carbon Steel Pipes 1. STANDARD:GB/T3094-2000, GB/T6728 ... ASTM A500, JIS G 3466, DIN EN 10210, GB/T178-20052. MATERIAL:Q195, Q215, Q235, Q275, Q345, 20#, 45#, Stainless steel, Seamless steel, Alloy steel ... TECHINQUE:Hot rolled, Cold rolled, ERW, High-frequency welded.5. APPLICATION:(1).Machinery manufacture: glass machinery, agricultural ...