JH-A500T Polyurethane Spray&Injection foam Machine Multifunctional Application: Mainly for construction injection, construction spraying,buffer packaging. Polystyrene Coating,insulated lintels,automotive industry ... heater,refrigerator,freezer,pipe joints,door-crack padding,products padding&packaging,roller shutter door,security door,road construction,wall noiseproofing,moulding ...