配重铁是现代机械制造工业的基础工艺之一。
The counterweight iron is one of modern machine manufacture industry foundation crafts.
本公司是一家专门从事工业设计，制造，改进工艺，提高工作效率的公司。
The company is a specialized in industrial design and manufacturing, improve processes, improve the efficiency of the company.
铸造是现代机械制造工业的基础工艺之一。
The casting is one of modern machine manufacture industry foundation crafts.
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