ASTM A53 BS1387 Galv Carbon Steel Pipe DIN 2440 ASTM A53 ASTM A795 ERW Line Pipe Standard: API 5L Steel Grade: GR.A, Gr. B, X42, X46, X52,X56,X56,X60,X70 ERW Galvanized Steel pipe Standard: ASTM A53, ...
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