Shenzhen Changen Industry Co. Ltd. was established in 2002. The company is located in the beautiful city - Shenzhen, China. There are 200 employees in the company. The workshop and factory buildings cover 15000 square meters. The company specializes in designing and producing guarding and security products, such as, lock cylinders, lock cases, steel wooden security doors, wooden doors and other hardwares. The company passed ISO9001 certification. The products are AAA certified and named as GREEN PRODUCTS.

Shenzhen Changen Industry Co. Ltd. has its own brand of CEI. The products quality and service of the company win high repution from all customers. At present, the company has two factories, one for the steel doors and the other for wooden doors. Recently, in order to meet the market requirements, the company has founded two subsidiaries, Shenzhen Jinmulang Cultural development Co., Ltd and Shenzhen Huixingu lock technology co., ltd.To improve the standards in door and lock fields is the goal of the company. The company has also constituted B+ security lock standard, security door standard and archive room door standards. B+ security lock standard has become the professional standard in the field.

Shenzhen Changen Industry Co. Ltd. has been researching and manufacturing steel doors, stainless steel doors, steel wooden doors, wooden doors, Xide Plate security doors, Aluminum doors, five colours locks, lock cases and handle panels. There are 21 kinds and 370 models of products owned by the company. In addition, it has got 58 international patents, including 3 international invention patents (i.e, joint jogged pin structure for lock cylinders, USB keys and automatic 3 in 1 lock case).,13 Chinese invention patents,16 practical patents and 25 appearance patents. The enterprise has unique design and strong machining capacity for the steel doors and wooden doors.

Thanks to the long-term researching and rich experience, in the middle of 2012, the company recommends its new product - B+ grade five colours locks, which has passed CE certification and become a bright star in the high security field.

Shenzhen Changen industry co., Ltd will create miracles continuously. We are devoted to supplying satisfactory security solutions and services to more and more customers.