WH11-10/A Air Compressor Electric Control Pressure Switch 1.CCC.ISO9001,CE, 2.have over ... terms of this problem,we design WH11series air-pressure automatic control switch,This product not only realizes the automatic ... machine.This switch is suitable for automatic control of air pressure or wated pressure, and also can be used for ... HOT SALES!!WH11-10/A Air Compressor Electric Control Pressure Switch