Doors and windows closed choice of materials

Affect the performance of windows and doors sealed metal pieces of many different types of impact points in accordance with the sealing performance of windows and doors can be roughly divided into the two types of point hardware and single lock point of the multi-lock hardware. Doors and windows hardware doors and windows tightness played a big role, should arouse our attention. Following a brief introduction to these two types of hardware:

Single lock point hardware generated by the sealing performance is necessary to relatively worse, the single lock point can only open the doors and windows side to provide a single point locking hinge (hinge) or sliding support with the only produce thirty-four locking points, windows and doors due to the four corners in the unconstrained state, two unconstrained angle to the gap between the lock point, severely reducing the sealing performance of the doors and windows.

Point hardware in the multi-lock lock and lock distribution around the doors and windows; when the doors and windows locked, the lock point, lock seat firmly buckle together with the hinge (hinge) or sliding support, co-produced strong seal clamping force to seal elastic deformation, thereby providing windows and doors sufficient sealing performance, the fan box to the formation of one;, multi-locking point hardware on doors and windows sealed, can greatly enhance the doors and windows seal properties.

(Source: electric roller shutter doors , http://www.shdayu.net )

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