Hollow Valve Balls,Hollow Bronze Ball Valve,Stainless Steel Valve Balls,Stainless Automatic Ball Valve WENZHOU ZHENHONG VALVE BALL CO., LTD , https://www.zhvalveball.com Our workshop 60g injection molding machine has three air conditioners imported from Japan. Every year it enters the summer, it will run continuously, and its exhaust and cold air mechanisms are outdoors. Since it is placed outdoors for many years, it is necessary to wash its dust and dirt frequently with water. Otherwise, it will affect the cold air exhaust effect and also reduce the service life of the motor. In the past, due to the limitations of water sources and hoses, it was inconvenient for washing work. To this end, the following methods have been adopted.