This type of defect is formed during the hot rolling process of the raw material.
这种类型的缺陷形成的热轧过程的原材料。
During production, the choice of raw material and technology may greatly affect the quality of the final product.
在具体生产过程中，原料和工艺等的选择对最终产品的质量有着很大的影响。
During production, the choice of raw material and technology may greatly affect the quality of the final product.
在具体生产过程中，原料和工艺等的选择对最终产品的质量有着很大的影响。
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