MEANWHILE, THE AIR VALVES MAKE THE GLEITHRETTER OF THE AIR VALVE OPEN AND CLOSE AUTOMATICALLY WITH THE CHANGING OF GAS PRESSURE IN THE AIR CYLINDER TO FINISH GAS ENTRY AND EXHAUST AUTOMATICALLY.

• 同时，气阀随着气缸内气体压力的变化而使气阀的滑片自动开启和关闭，所以可自动完成进气、排气的过程。