Cutting on the marked line

Bending the torch at inclined angle

Supporting the nozzle head on the plate

Using two straight bars clamped as a guide

Oxygen, hydrogen and carbon

Carbon monoxide unburnt ash

Hydrogen, dust particles, ash

Hydrogen, lime dust, ammonia and water

Filter wool

Baffle plate

Pumice stone

Purifying Chemicals

Spot welding

Forge welding

Thermit welding

Explosive welding

Tong

Try square

Hand shield

Chipping hammer