短语词组短语sand mould casting 砂型铸造;砂型铸件sand -casting [机]翻砂open sand -casting 敞浇注件sand Al casting 沙铸铝件sand box casting process 砂型浇铸法exact sand mold casting 精确砂型铸造sand in casting process 铸造旧砂green sand mold casting 湿砂型铸造 返回 sand casting