ROTO FRANK is a German manufacturer of door and window hardware systems. To this day, Germany's Noto Franc International Group has become the world's largest manufacturer of professional door and window multi-point lock hardware systems. It has a total of 6,000 employees and more than 40 sales companies worldwide. The group has 14 subsidiaries and its product series has grown to nearly 20,000.

Notofrank established a sales subsidiary in China serving China and the Asia-Pacific region - Notofrank Construction Hardware (Beijing) Co., Ltd. in 1997. After more than 20 years of active market expansion and professional marketing and services, Notofrank has become a relatively large and influential imported hardware supply of aluminum alloy, plastic steel, solid wood, wood-aluminum composite doors and windows and curtain walls in China. business. We have successively established branches in Shanghai, Shenzhen, Harbin, Qingdao, Tianjin and Hainan, and established more than 20 offices in other cities to provide closer services to customers across the country.

Rotoi System is an aluminum alloy door and window system developed for the Asia-Pacific region based on the climate characteristics, usage needs and processing characteristics of the German Roto Group. It is a series of interrelated door and window materials and Advanced door and window technology is organically composed of the technology. It uses heat-insulated aluminum alloy as the main body Roto hardware as the design basis, including aluminum profiles, hardware, accessories, tooling, equipment, as well as supporting software, processing technology standards, etc. It aims to help Noto partners to respond more quickly to users' diverse needs for high-quality doors, windows, curtain wall products.

Rotoi system doors and windows have complete series of products such as inner opening, outer opening, folding, inner sliding, push-pull, lifting and push-pull. They not only inherit the style of pure German door and window systems, such as rectangular cavity design, double cavity angle grouping, glue injection process, high-proof prying RC grade design, etc., but also increase the high level of climate conditions such as rainy and strong winds in the Asia-Pacific region. The watertight, high wind pressure resistance design and new dustproof technology represent the technical level of doors and windows of the new German system.