... II pneumatic and high-pressure polyurethane sprayer is designed according to the foaming characters of polyurethane rigid foam and the ... DF-II pneumatic and high-pressure polyurethane sprayer will be your preferred equipment.Pneumatic motor:Two-way pneumatic motor ... one main engine, two feed pumps, one spray gun, 15-meter insulation pipeApplications: polyurethane wall, roof, cold storage, tank, pipe ...