China Wenzhou Redsun Lock Factory founded in 1997. After 10 years effort and hardworking, now the factory has been developed into fields of alarm lock, bicycle lock, door lock, automobiles lock, padlock, which combined of designing, researching, producing, selling and technical consulting all together into consideration. The production is distinct in self-dependent development, creative design, pioneer of China and owning many patent technologies. As well is the waterproof capability, which overcomes the difficulty that the circuit is easily broke by the water before. Now the production from our factory is salable among 50 cities of China or more, 60% of production is export to more than 50 countries and areas all over the world.