ASTM A53/A53M-02 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A53 Grade B ERW Pipe and SA53 Gr B Seamless/ Galvanized sch 40
galvanized pipe specification pdf Archives | Leading Indian Manufacturer of Stainless Steel Pipe, Carbon Steel, Alloy Steel, Nickel, Duplex, Super Duplex Pipes and Tubes