• After the hot-rolled steel coil plant sent, the first after three consecutive treatment, the first use hydrochloric acid to remove oxide film, and then to be cold-rolled unit.

    经过热轧厂送来要经过连续次技术处理,先要盐酸除去氧化然后才能送到冷轧机组。

    youdao

  • After the hot-rolled steel coil plant sent, the first after three consecutive treatment, the first use hydrochloric acid to remove oxide film, and then to be cold-rolled unit.

    经过热轧厂送来要经过连续次技术处理,先要盐酸除去氧化然后才能送到冷轧机组。

    youdao

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