JH-A500T Polyurethane Spray&Injection foam Machine Multifunctional Application: Mainly for construction injection ... heater,refrigerator,freezer,pipe joints,door-crack padding,products padding&packaging,roller shutter door,security door,road construction,wall noiseproofing,moulding ... tube connect with gun:1.5m(4 feet) 1 set of accompanied accessories Brief introduction: Polyurethane foaming material has ...