Hardware: traditional hardware products, also known as "hardware". Refers to gold, silver, copper, iron and tin. After manual processing, it can be made into works of art or metal utensils such as knives and swords. Hardware in modern society is more extensive, such as hardware tools, hardware accessories, daily hardware, building hardware, security supplies and so on. Most hardware products are not final consumer goods.
Broken bridge aluminum doors and windows, using heat insulation broken bridge aluminum profiles and insulating glass, have the functions of energy saving, sound insulation, noise prevention, dust prevention and waterproof. The thermal conductivity K value of the broken aluminum doors and windows is below 3W/㎡ k, which reduces the heat loss by half compared with ordinary doors and windows, reduces the heating cost by about 30%, and the sound insulation capacity is above 29 dB, and the water tightness and air tightness are good, all reaching the national A 1 class window standard.
ROTO FRANK is a German manufacturer of door and window hardware systems. Today, Germany's Noto Frank International Group has become the world's largest manufacturer of professional multi-point lock hardware systems for doors and windows. There are 6000 employees and more than 40 sales companies around the world. The Group has 65,438+04 subsidiaries, and its product range has grown to nearly 20,000.