A certain proportion of stabilizers, colorants, fillers, ultraviolet absorbers, etc. are extruded, and then the door and window frame fans are made by cutting, welding or screwing, and the sealing strips and tops are fitted. Hardware, etc., at the same time to enhance the rigidity of the profile, the steel lining (reinforcing ribs) needs to be filled in the cavity of the profile beyond a certain length, so that the portal window is called plastic steel door and window.

1 According to the opening method, it is divided into: fixed window, upper hanging window, middle hanging window, lower hanging window, vertical turning window, swinging door and window, pulley casement window, pulley window, swinging and lower hanging door and window, sliding door and window, sliding and sliding Window, folding door, floor spring door, lifting sliding door, sliding folding door, inner sliding door.

2 According to the performance, it is divided into: ordinary door and window, soundproof door and window, and insulated door and window.

3 According to the application parts are divided into: inner doors and windows, outer doors and windows.

4 by brand: Gujia plastic steel door, Xinlin doors and windows, Shide doors and windows, conch doors and windows, Wu Zhitao doors and windows, good Jiaxi doors and windows.

5 according to the manufacturer classification: Beijing Gujia doors and windows, holy sea doors and windows, Aisyiou doors and windows, top doors and windows, and imperial doors and windows.

Others Ferrite magnet

Arc Ferrite Magnet,Block Ferrite Magnet,DIS /Cylinder Ferrite Magnet

SDM Magnetics Co., Ltd. , http://www.lg-magnets.com