Variable polarity vertical-up plasma arc welding
automatic vertical welding machine
double-side vertical welding
flat wire vertical welding machine
Inclined Vertical Welding
vertical welding
立焊
立缝焊接
气电立焊
垂直焊
直立熔接
竖向焊接
竖向焊缝
vertical welding fusion line for water distribution ring pipe of a electric machinery
automatic built-up welding machine
automatic pile-up welding
build-up welding consumable
Build-up welding process of wear resistance alloy
Build-up Welding With Electroslag and Plate Electrode