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. against coin- jams and coin-sliding ;
6. To prevent overtime use ;
7. Lock barrel with patent structure, difficult to copy the key;
8. Master key can open all the doors in case of emergency , and makes the alteration of defective customer cylinder simple