Zinc base die castings are always copper plated in cyanide baths.锌基合金的压铸件总是在氰化镀液中镀铜.It's used for the production of large castings.它用于大型铸件的制备.All lead castings were produced at first by hand in many cases from singl...
Zinc base die castings are always copper plated in cyanide baths.锌基合金的压铸件总是在氰化镀液中镀铜....stainless steel castings for Waterloo Station.为滑铁卢车站做的不锈钢铸件It's used for the production of large castings.它用于大型铸件的制备.We can also...
There's no question she is the best comedienne in this country.她无疑是该国最优秀的女喜剧演员。They applaud their favorite comedienne as she come on the stage.当他们最喜欢的女喜剧演员登台时,他们鼓掌欢迎.She is a famous comedienne here.她是这里有名的单口相声家....