The cause of the fire was believed to have been due to a welder whose welding machine burst into flames.

Now we bob around quite a bit, and every time we have to call a man with a welding machine, we've got a sizable expense.

Later, these converters were further developed into automatic welding machines.

He stepped out from behind a welding machine onto the hangar floor.

Ultrasonic welding machines also have much more power now.

Ultrasonic welding machines, like most industrial equipment, pose the risk of some hazards.

One technological fix for this problem is to fit carousels onto the welding machines.

Ignitrons were used to control the current in electric welding machines.

He stood in the old part of Building 58, which was now filled with welding machines and a bank of insulation braiders.

That day, the weather was raining heavily and Ray had reached down to grab the led direct current wire for a welding machine.