Smelting, casting, rolling, annealing, pickling, surface processing and skin pass rolling;

冶炼、铸造、轧制、退火、酸洗、表面处理、平整；

youdao

Smelting, casting, rolling, annealing, pickling, surface processing and skin pass rolling;

冶炼、铸造、轧制、退火、酸洗、表面处理、平整；

youdao