Metal locks divided into the following 1 padlock: divided into brass padlocks, iron padlocks and password padlock, specifications 15,20,25,30,40,50,60 and 75mm. 2, Choudou lock: divided into all copper Choudou Lock sets of copper Choudou lock, door lock the aluminum core Choudou lock...

Lock, is one of the most closely linked items with people's daily life. From primitive society, the development of the locks experienced a long and complex process of evolution, mainly by the ancient the inserted spring lock stage, to the modern mechanical lock phase and are entering the era ...

Lock industry, the metal products industry in both traditional and emerging industries, said it traditional lock products have a long history of manufacturing and the use of time; said it emerging, lock products innovation, absorbing the use of new technologies to meet the new era consumer lock...

With the sharp rise in the lock industry trends, market demand is gradually increasing, China has become a global lock manufacturing and consuming countries. In recent years, Europe and the United States, Germany, Japan and other developed economies pick up, China's sustained and rapid...

The lock was born almost simultaneously with the private ownership. As early as 3000 BC in China Yangshao ruins, retained wooden lock on a wooden structural frame construction. Eastern Han Dynasty, the Chinese iron three spring lock technology has a very high level. The three spring lock follows ...

Three scales, the development trend of China Locks products: a high-precision, high-efficiency, high fastness, multi-functional; over two specifications, many varieties;, serialization, universal, showcase their characteristics; three craft and technical strengthening should:aspects of cutting...