- Heng Hing Enterprises Limited
- Door Viewer,Door Guard,Door Knocker,Mortise Cylinder,Knob,Door Stopper,Deadlatch,Zinc Alloy Lever Handle,Rim Cylinder,Trim Ring,Deadbolt Lock,Thumbturn Cylinder,KEY-IN-KNOB Cylinder,Night Latch,Hook Bolt Lock,Entrance Handle,Deadbolt,deadlatch,Cylinder,Stopper,Knob,Door ....
- Address:Rm. 223, 2 / Fl. , Lincoln Centre, 20 Yip Fung Street, On Lok Tsuen,
- Kin Kei Hardware Industries Ltd.
- Code Lock,Euro Profile Cylinder,Mortise Lock,Rim Lock,Deadbolt Lock.
- Address:No. 704, 7 / F Eastern Centre, 1065 King Road, Tai Koo
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