Shenzhen Chang' en Industry Co. Ltd. was established in 2002. There are 200 staff members now in the company. The company specializes in designing and producing safe protection products, such as, lock cylinders, lock cases, steel wooden security doors, wooden doors and other hardware. The company is ISO9001 certified and the products are AAA certified and named as GREEN PRODUCTS. Our enterprise has its own brand CEI� All the customers like our high quality products and best service. At present, the company has two factories. One is for the steel doors and the other is for wooden doors. But recently, in order to cater for the market requirements, the company has founded two companies, Shenzhen Jin Mulang cultural development Co., Ltd and Shenzhen Hui Xingu lock technology co., ltd. The company has been developing, designing and producing the security door and locks. To improve the standards in door and lock fields is the goal of the company. It has constituted B+ security lock standard, security door standard and archive room door standards. B+ security lock standard has become the field standard. The company has been researching and manufacturing steel doors, stainless steel doors, steel wooden doors, wooden doors, Xide Plate security doors, Al doors, five colors lock cylinders, lock case and handle panels. There are 21 kinds and 370 models of products owned by the company. Besides it, it has got 58 globally patents, including 3 international invention patents (ie,joint jogged pin structure for lock cylinder, USB keys and automatic 3 in 1 lock case).,13 Chinese invention patents,16 practical patents and 25 appearance patents. Our company has unique design and strong machining capacity for the steel doors and wooden doors. Through the long-term considering and researching and based on much experience, in the middle of 2012, the company recommends its new product- B+ grade five-color lock cylinder which has certified by CE, creates five ? No. 1? in the field
