1, German company VBH is the largest supplier of door and window hardware in Europe. German VBH Company was founded in 1975, and became a listed company in 1989. 1995 obtained ISO900 1 quality certification.

2. Germany Haobo is a professional hardware brand under HOPPE Haobo Group. 1952 was founded in Germany. Now headquartered in Switzerland, there are seven factories in the world, located in Germany, Italy, the United States and the Czech Republic. The above two companies have good money, both of which are very good. Buy according to your own needs.