
Screwing Dies And Dienuts - Specification For Hand- And Machine-Operated Circular Screwing Dies For Taper Pipe Threads - R Series
出版:British Standards Institution

专家解读视频
Screwing Dies And Dienuts - Specification For Hand- And Machine-Operated Circular Screwing Dies For Taper Pipe Threads - R Series
出版:British Standards Institution
专家解读视频