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1959年以来,我厂采用本地河砂铸造高锰钢件,十年来实践证明用这种砂铸造高锰钢件表面光洁,原砂成本低,也无因原砂而产生的铸造缺陷。
Since 1959, our factory has adopted local river sand casting high manganese steel parts. Practice shows that the surface of high manganese steel castings with this kind of sand is smooth and smooth, the cost of original sand is low, and there is no casting defect caused by original sand.