• ASTM A513 Alloy Mechanical Tube
    ASTM A513 ERW Carbon and Alloy Steel Mechanical TubingASTM A513covers round, square, rectangular, and special shape electric-resistance-welded carbon and alloy steel mechanical tubing produced by hot- or cold-rolling. The types of tubing covered here are:Type 1a, as-welded from hot-rolled stee
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