... 3mmWire feed wheel gravitation≥7KgQX-2A electric metal wire spray gun is specific equipment that continuously feed single metal wire ... for machine elements.QX-2AN electric flame bore air spray gun is applicable for spraying workpiece with bore diameter more ... guide rail, vertical shaft, etc.Spray materials in use: zinc, aluminum, copper, molybdenum, carbon steel, stainless steel, Babbitt alloy, etc. ...