With strict quality control system to check on layer upon layer for zero drawback products, Shopin lock company owned 27 year experiences in manufacturing combination locks, padlocks, trailer locks, as well as hardware accessories, and we also accept customized designs, in accordance with Philosophies in Management “Good Faith”, “Service”, “Quality”, “Innovation”, developing processing technology by ourselves, our products tried very hard for standardization, reputation for honesty is remarkable, as well as acquired market superiority & enhanced enterprise competitive ability.