SHENGYE METAL MANUFACTORY is a manufacturer of Over-head Transom closers, floor spring, door closer and patch fitting, which was established in 1990.We are accredited with ISO 9001-2000 and compliance with China Technical Standards and National Light Industrials Bureau QB/T 2697-2005, our products are subject to 500,000 cycle tested and distributed worldwide and 20 local distributors in China.Within the last 10 years, we have established ourselves a Leader in manufacturer of Door-Controls in China. We provide high quality products, technical back-up and after sales service to our distributors/agent.