
Specification For Pipe Threads For Tubes And Fittings Where Pressure-Tight Joints Are Not Made On The Threads (Metric Dimensions)
出版:British Standards Institution

专家解读视频
Specification For Pipe Threads For Tubes And Fittings Where Pressure-Tight Joints Are Not Made On The Threads (Metric Dimensions)
出版:British Standards Institution
专家解读视频