Application: boiler, heat exchanger, refrigeration and other equipment, the Department of Expansion Management. 1. Compressed air-filters, sewage and dirt. 2. Using the front air intake by adding 3-5cc (about 30 drops) pneumatic tool lubricant. 3. Connected to the 0.6-0.8Mpa Compressed air with movable partitions, fixed drive connector plate, positive and negative pull a few times, flexible and ...