... cast iron manhole cover 铸铁人孔盖板 cast iron melting pot 生铁熔化锅 cast iron mower 生铁割草机 ...
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Using planetary gear reducer insteads of worm and worm wheel reducer in the pouring mechanism of melting cast iron pot. It had been used in practice and got its economic result.
用小型行星减速机构代替蜗轮蜗杆减速传动装置，为铸造厂铁水包倾倒机构解决了一项生产难题，在生产中取得效益。
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