Flow switch can be installed in a reducing tee, standard tee or weldedfitting.
开关可以安装在异径三通管，标准三通管或焊接管件上。
2
It is pointed out that fitting and adjusting the rolls in the forming process of welded joint and holding several basic steps in producing high quality welded joints are very important.
指出了轧辊的装配及调试在焊管成型过程中的重要性和保持生产高质量焊管的几个基本步骤。
3
It's a key machine for pipe fitting forming and pipe end beveling before welded in pipeline construction.