“铸件”造句

锌基合金的压铸件总是在氰化镀液中镀铜.
Zinc base die castings are always copper plated in cyanide baths.

如果顶钉调整不当,可能使铸件报废.
Any out - of - adjustment pins can be reason for casting rejection.

锑能增加铸件的硬度.
Antimony adds to the rigidity of the casting.