Dongguan Shengang Precision Metal & Electronic Co., Ltd.  

intelligent electronic door locks, intelligent furniture hardware, a full set of hardware for real estate hardbound rooms, functional multi-directional adjustable hidden german hinge, three-dimensional adjustable Japanese flat hinge, six directional adjustable hidden Italian hinge, indoor door locks, burglar proof door locks for entry doors, door closers, door stoppers, sliding door hardware, folding door hardware, hanging pulley and slide rail