high alloy steel造句怎么写

2、A new filtration technique for purification of carbon, stainless, high speed, low and high alloy steel castings in investment casting was investigated.

1、The results show that the resistance of low carbon high alloy steel is better than that of the high manganese steel under the same test condition.

3、Wear loss of specimens for these two steels during a certain time show that low carbon high alloy steel is much more resistant to corrosive impact abrasion than high manganese steel.