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40 120Mm Carbon Alloy Steel Bar For Rod Mill With No Bending

D2 high carbonchromium drill rod is a wear resistant steel that is often the most expensive of the tool steel drill rod with more carbon and chromium than a2 it is considered more wear resistant and is often used for forging and drawing dies s7 airhardening super shock drill rod s7 is a lowcarbon shock resistant drill rod

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