The production process of gray iron with trace antimony addition and its application scope was introduced.
介绍了加微量锑灰铸铁的生产工艺和适用场合。
2
The tests of adding antimony to increase hardness of guide way of large beds was described and the results of its application in production was introduced.
介绍加锑提高大型床身导轨硬度的试验情况和生产应用结果。
3
A comparison has been made between systems of stannous oxalate and antimony trioxide, the result shows the former has a bright future as a polycondensation catalyst in practical production.