... seamless pipe CARBON STEEL:Astm a 53/106/ API 5LA/B,ST37,ST35.8 Technique:Hot Rolled or Cold Rolled ... Size:1/2"-24" API 5L seamless pipeMaterial:1. CARBON ... /106/ API 5LA/B,ST37,ST35.82. Standard: Seamless – ASTM A106, API 5L, ASTM A179, , ASTM ... make it as customers' required5. Technique: Hot Rolled or Cold Rolled ERW6. Surface: Bared, Galvanized, Oiled, Color ...