... smt service appliance pcbacircuit boardPCBA for controlling theopening of the electronic expansion valve ems and smt servicecircuit ... control and test 7,Packing and dispatch8,Added benefits to using a turnkey soution9,Facilities marketing objietives10,Reduces ... deliceryShanghai Jingling Enterprise Co., LTDAdd: 411# Jiuxin Road, D-of Songjiang, Shanghai, 201615, PR. ChinaTel: (8621)37693956 Fax ...