China coin-lock expert
warranty against coin-jams,coin-sliding,coin-pried and burglarproof
excellent quality,your best choice

Coin Lock:

1. Can distinguish fake coins.
2. Burglarproof .
3. To prevent using without coin inserting .
4. To prevent re-inserting coin during using .
5. Free of coin jamming, free of coin sliding .
6. To prevent overtime using .
7. Lock barrel with patent structure, difficult to copy the key.
8.Master key can open all the door in an emergency ,and replace the defective locks easily.