cold draw seamless API pipe Astm a 53/106/ API 5LA/B,ST37,ST35.8 Technique:Hot Rolled or Cold Rolled Size:1/2"-24 ... " cold draw seamless API pipe Material:1. CARBON ... . Length: We can make it as customers' required5. Technique: Hot Rolled or Cold Rolled ERW6. Surface: Bared, Galvanized, Oiled, Color Paint, 3PE; Or ...