针对四台矿选煤厂制约井下生产的问题，改造其原煤车间篦条筛，达到了理想效果。
In Sitai mine, the production was restricted by the washery capacity. The bar screen was reformed and gained good result.
实践表明，采用消失模铸造生产的固定筛篦条产品表面质量、 性能指标均能保证使用要求。
Practice prove, application of casting technique of lost pattern in production of agglomeration machine trail fixed screen grate, its surface quality and pe…
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