Production - TONG HONG ELECTRIC CO., LTD-通竑電機有限公司- Tube, Coil, Precision Parts, Travelle, solenoid valves, Shaft parts, Machine parts, Auto parts, Coils, Car Parts, Precise parts, Proportional Valves, solenoid coil, Valves Coil, Coil for Valves, 電磁閥, 磁管, 線圈, 电磁阀, 磁管, 线圈, 精密零件, 滑柱