This unit group also includes machine operators who operate previously set up production welding, brazing and soldering equipment.
此单元组还包括操作预先组合好的生产焊接，钎焊和锡焊设备的机器操作员。
2
The feeding speed of shifting unit of welding machine is one of the most important factors of rail continuous flash welding quality.
影响钢轨闪光焊接头焊接质量的因素很多，其中焊机动力柱的送进速度就是重要因素之一。
3
Current, welding speed, and pressure are the factors which can influence the welding quality of narrow lap welding machine during the galvanizing unit production.