Established in 1993, located in Pujiang city - the biggest padlocks making center of China, we ZHE JIANG PUJIANG SHENG LI INDUSTRY & TRADE Co., Ltd (the former PUJIANG COUNTY SHENG LI LOCK FACTORY) is a modern and high - tech padlock manufacturer which integrates products R&D, production and marketing into a whole; We now have 2 factories in Pujiang city and 1 booth in Yi wu international trade & business