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How to Discriminate Plastic-steel Door/Window Hardware Fittings

First of all, we should check the material, UPVC profile. The high-quality UPVC profile is reasonably designed with multiple cavities and thicker wall. Its formula contains anti-aging agent and ultraviolet-proof auxiliaries; it looks green in white, and feels smooth. Such UPVC profile can not get aging, fading or deforming in outdoor environment.
The inferior profile is yellowing in white, has poor sunscreen capability, and easily gets aging and cracking because there is much calcium in formula. Consumers should compare cross sections of different profiles together, and preliminarily distinguish them by color and hand feel.
Secondly, consumers can tell differences of plastic-steel doors and windows from hardware fittings. The high-quality hardware fittings are made from metal with strong strength, but the inferior ones are plastic which will cause harmful effects on the quality and service life of doors and windows.

 
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Espag Handle, Door Handle Manufacturer, Hinge Company - Lianyongxin Hardware
NO.375Yuelin East Road, Fenghua city,Ningbo, Zhejiang Province.
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