The structure and principle of jty-1 type air reduction pressure valve for double wind pipe of installation in the raising speed locomotive are described.
介绍了安装在提速机车上专门用于列车双管供风的jty—1型空气减压阀的结构和原理，并介绍了使用、检修及常见故障的处理方法。
The invention relates to a double helical ribbon pipe type reactor, which is particularly suitable for preparing high-performance polyacrylonitrile-based carbon fiber spinning solution.
本发明涉及一种双螺带管式反应器，尤其适用于高性能聚丙烯腈基碳纤维纺丝液制备。
The double radius hole type was commonly adopted for the forming machine of straight weld pipe with vertical roller in domestic present.
目前，国内带有立辊组的直缝焊管成型机大都采用双半径孔型。
Because it USES serial double arc type, the welding speed of welding stainless pipe has been increased.
由于采用串列电弧的形式，使不锈钢焊管的焊速能明显提高。
Particularly suitable for single compression, double compression ring compression and welding type pipe fittings.
特别适用于单卡压、双卡压、环压、焊接等不锈钢管件生产。
Particularly suitable for single compression, double compression ring compression and welding type pipe fittings.
特别适用于单卡压、双卡压、环压、焊接等不锈钢管件生产。
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