PU Foam Gun:
 

1.Light gun: the worker won't feel tired after long works.

2.Lazy gun: the worker does not need to clean the guns with solvent after use.
 

30 days laterWhen the worker unlocks the needle, the gun works as well as before.

the foam inside the gun won't get stuck (without taking off the foam cans away from the adapter).

Main Material
Adapter	Zinc
Gun body	Aluminium
Gasket nut	Brass
Regulation wheel	Steel
Barrel	Steel
Needle	Steel
Nozzle	Steel
Trigger	Steel
Handle	PP