What are the performance requirements of high quality sliding braces? 1. Window opening and closing force: the ratio of sliding brace for inside and outside casement windows shall not be greater than 40n, and the opening and closing force o...

We often talk about door and window hardware, what is the Five gold? Door and window hardware is the general name of metal and non-metal accessories on building doors and windows (not literally five kinds of accessories). Its function is to...

Many times, people are often misled by the word match of accessories. As time goes by, the misunderstanding that door and window hardware accessories are supporting roles or irrelevant has formed. In fact, in the room world of doors and win...