Profile: Jinan Bester Hardware Co., Ltd. manufactures door lock, which includes mortise long safety lock, multi points mortise lock, mortise lock, automatic safety lock and rim lock. Our mortise safety lock S101 has suited profile cylinder that is keyed into lock case and is fastened with screws, which retracts the latch and operates deadbolts with a double turns (15 mm and 25 mm projection). Our multi-points mortise lock S201A "U" shape front plate (aluminum alloy) is mounted on the lateral side of door, and main lock case and auxiliary lock cases.