门更密切的

Advantages: 1) Use theoil-gas combined gas spring to replace thetraditional mechanical spring. Life time: over 100,000 cycles. 2) The horizontal and streamlined design meets the modern ornament trend and leave you the sense of occupying less space. 3) After installation, the door is in the self-lock position when its angle is over 85 degree. The door will be closed by itself slowly if the angle is less than 85 degree, and the door will be closed quickly when the angle is about 10 degree. 4) The biggest angle of opening the door is 100 degree. 5) The proper width of the door for our door closer should be 700 900mm, and the proper weight of the door should be 20-45kgs.