Be able to bear or endure a characteristic that ageing, service life grows is window of model steel door. Await gender, heat preservation sex, sound insulation sex to detect according to be able to bear or endure to plastic door window frame result proof, the ageing process of horniness PVC is a very slow process, the service life of window of model steel door can amount to 50 years or so.

Do sex of sealing of window of model steel door, heat preservation, sound insulation sex, adornment sex and common door window have why to distinguish?

Window of model steel door uses the data of special recipe, bibulous rate is less than its material itself 0.1 ％ , double deck all is used between casing fan sealed form, aperture place all contains admirable fluid sealant, and at casing material proper place opens osculum, horny ministry also is to pass machinery to solder shape, the sealed performance of window of model steel door is so wonderful, not ooze water and moistureproof, sound insulation, in respect of heat preservation sex, the casing talent ability of door window is qualitative with glass the main factor that is influence hot conductibility, the material of window of model steel door is qualitative, the L ／ that its heat conducts coefficient to be aluminium only 1250 times. window of face each other, the diathermancy of window of door of PVC odd Bo and window of door of aluminous odd Bo can than for 1: 2, the window of model steel door because of this same area condition its heat proof quality relatively metallic door window is actor, can save the sources of energy to use up 30 ％ above. In side of sound insulation performance, window of model steel door leaves a road 6 meters sound insulation effect and window of aluminium alloy door leave a road 18 meters sound insulation effect comparatives. Window of model steel door has above not only good performance, and its are beautiful and decorous, color is changeful, formal diversity, clean bright Yi Qing is washed, so adornment effect also is relatively of actor, actually, the developed country such as Europe uses window of model steel door extensively already.

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