... molybdenum and ≤0.03% Carbon)And so on. The original materials import form India, Korea and Taiwan, Such as YUSCO, BNG ... , TIG welded, Plasma Arc Welded.3) Standards: ASTM A554, ASTM A249, ASTM A269, ASTM A270, ASTM A312,DIN 118504) Mark: Steel Seal and Label5 ... : Kraft paper, wooden cases or according to customers' requests. ASTM A312 Welded Stainless Steel Pipes, Tubes and Tubings for Petrochemical ...