In the process of our decoration, the entrance door and bedroom door are essential, and the lock is very important for the door, especially the entrance door, which is directly related to the safety of our whole family, so every family will choose the lock carefully. There are many lock brands on the market now, and the three-ring lock is one of them. What about the three-ring lock? Let's give you a detailed introduction.

How about a three-ring lock? Yantai Sanhuan Lock Industry Group Co., Ltd., one of the top ten brands of locks in China, the top ten brands of induction locks and fingerprint locks, a well-known trademark in China, a lock king in China, a time-honored brand in Shandong and a famous brand in Shandong, is a large-scale professional lock-making enterprise group with a long history.

Yantai sanhuan lock industry group co., ltd was established in 1930. After nearly 80 years of hard work, it has developed from an unknown hardware workshop to a large-scale professional lock-making enterprise group renowned at home and abroad. The company covers an area of 340,800 square meters, with a building area of 15 1300 square meters. At present, there are 3380 employees, including 289 engineers and technicians and 0/37 high-quality workers. It has the only national technology development center in the national lock industry.

The company specializes in producing "Sanhuan" brand civil locks and commercial locks, mainly including padlock series, door lock series and car lock series. * * * owns more than 100 color specifications, and sells well in more than 80 countries and regions in the world, with 3 1 province, city and autonomous region in China. Adhering to the tenet of "quality first", the company has done a good job in quality management of enterprises, and passed ISO900 1:2000 quality system certification, ISO 1400 1:2004 environmental management system certification, OHSAS18001.

Sanhuan brand locks won the only national gold award in China lock industry, and won the title of "China Lock King" for two consecutive years. It is a well-known trademark in China, a famous trademark in Shandong Province, and an old brand in Shandong Province. The company is the chairman of the Locks Branch of China Hardware Association. He is a founding member and a permanent member of Yantai Charity Federation.