导致热轧板卷冷弯开裂的原因很多。
There are many influence factors on producing crack of hot rolled strip coil during roll forming.
它是以热轧或冷轧带钢或卷板为坯料经冷弯曲加工成型后再经高频焊接制成的方形截面形状尺寸的型钢。
It is hot-rolled or cold-rolled strip or sheet for the blank shape by the cold bending process after the high-frequency welding as a square cross-section made of steel shapes and sizes.
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