KNG is currently one of the largest window & door accessories manufacturers in China with a relatively complete quality management system. It includes window & door hardware system design center, research and testing center, smart factory, sales and service center. We serve more than 70 countries and regions.

Testing Center has a large number of imported and domestic testing equipment. The testing cente team has many years of experience in large-seale laboratories in the industry. Testing Center mainly serves KNG's product development and production process product performance testing. Possess material mechanics, surface treatment performance, climatic environment simulation test, complete set of window & Door hardware operation performance, precision dimensions and other aspects of testing capabilities. At the same time, it is the first in the industry to test the fatigue life (repeated opening and closing) of robot window & Door hardware. Hardness tester, torque tester, push-pull tester, film thickness tester, color difference tester, light source box, programmable constant temperature and humidity box, UV ultraviolet aging test box, salt spray test box, OVM 2.5-dimensional measuring machine, robot Window & Door hardware testing machine, etc. Equipment.
We have our own three-dimensional workshops such as fully automated stamping, die-casting spraying, assembly, tapping, testing instruments and equipment.
KNG, Committed to bringing customers a safe enjoyment of sunshine and air, Let every Safety window & Door in the world have KNG.