1,Reliable 2.Stable 3.High quality products 4.Continuously produce Type: Pipe Production Line Product name: welded pipe line1. Standard: ANSI B36.10, ASME B36.10, DIN 1629, DIN 171752. Material: ASTM A53, ASTM A106, API 5L, Q235, 20#3. Size: 1/2" to 48", ND: 15 to 12004. Wall Thickness: 2.11 - 59.54mm, SCH 10 to SCH 160, STD, XS, XXS5. Length: 1 to 12 meters6. Surface treatment: Black painting, ...