“微锡铸铁的试验和应用”一文是南口工厂利用微锡铸铁试制机车压油机、电力机车空气压缩机活塞环以及车辆轴瓦的初步成功经验介绍.南口工厂在试生产中经历了多次失败,由于坚持下去,最后终于获得初步成功,文中也简要地叙述了试生产过程,这对兄弟工厂在进一步作试验时少走弯路有一定作用.但是,由于微锡铸铁是新近发展起来的合金铸铁,各项性能以及扩大应用等方面都有更进一步研究的必要,因此兄弟厂在推广这一初步经验当中也一定会获得更新的经验.我们殷切希望兄弟工厂随时提供这方面的研究成果,从而促进微锡铸铁的进一步发展. The article “Test and Application of Micro-Tin Cast Iron” is a preliminary introduction to the successful experience of trial trial of Nankou Factory with mini-tin cast iron, locomotive air compressor piston ring and vehicle bearing bush. As a result of its persistence, it finally achieved initial success. The trial production process was also briefly described in the article, which would have some effect on the detours of brothers factories when further testing was conducted. However, since the micro-tin cast iron is a newly developed alloy cast iron , The performance and the expansion of the application and so there is a need for further study, so Brother plant in the promotion of this initial experience will certainly be updated experience.We sincerely hope that the brothers plant at any time to provide research in this area, thus contributing to The further development of micro-tin cast iron.