The blasting gun B with one 35mm nozzle and one holder.
The inlet diameter of blasting gun generally is 10mm and 13mm
The outside diameter of inlet sand joints is 13mm
The inner diameter of putting sand hose general is 21mm.
1. Suitable nozzle (BN-35) :
exteral diameter 20mm
inner diamter 6/8/10mm
material tungsten/ boron ccarbide
the left is made of tungsten carbide, the right is made of boron carbide.
2. gun B