... the electronic expansion valve Control both the electromagnetic expansion circuit board PCBA for controlling the opening of the electronic ... .10mm Surface finishing: HASL Lead free, Plating TinProvide PCB board OEM&ODM service, pab copy, PCB design, PCB SMT ... UL, ISO9001, ISO14001, RoHS Profiling punching: Routing, V-CUT, Beveling Providing OEM service to all sorts of printed circuit board assembly ...