This is rainbow from changzhou Dahua lock factory co., ltd..

We are very professional manufacuturer of rim(door) locks located in the national HI-TECH new area electric industrial park in Changzhou which is near Shanghai around 1 hour by high speed train.

Our factory is established since 1987, specialized in producing various rim locks&electric rim locks&security rim locks, Through more than 20 years development and effort, we have been a leader in this field of China. Our working place is more than 25,000 SQM. We have passed ISO9001, ISO14001, CE various certifications. We produced various door locks over 5,000,000 pieces per year and our sales volume reaches USD$ 20 millions. With our good quality, best competitive price and service make our company have ooperated with CISA and YALE the international brand for more than 10 years.

Looking forward to receiving your inquiry if you have interest and build up our friendly cooperation in the nearest future.