铸钢工艺中采用石灰石砂代替石英砂是一种有效的消除清砂工矽肺的措施。
It is an effective way of eliminating the occurrence of silicosis in fettling workers by substituting silica with limestone as molding material in steel casting factory.
铸钢工艺中采用石灰石砂代替石英砂是一种有效的消除清砂工矽肺的措施。
It is an effective way of eliminating the occurrence of silicosis in fettling workers by substituting silica with limestone as molding material in steel casting factory.
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