One,focus on beauty
1.When purchasing,there are many styles that value the color,so the quality is not valued.
2.The double-layer hollow glass used,and the three-layer laminated glass,which is much better than ordinary glass.
3.Regarding the thickness of the oxide film,it needs to be 10 microns,which can be lightly scratched on the surface of the glass profile,and then see if the oxide film on the surface can be wiped off.If it can be wiped off,it is good.
1.The purchased aluminum alloy doors and windows need to meet the requirements of relevant national regulations,and the thickness of the aluminum profile wall of the doors and windows cannot be less than 1.2mm.
2.The thickness of aluminum alloy door and window profiles ranges from 0.8mm to 1.2mm,and some are above 1.2mm.
3.The aluminum alloy door with a thickness of 1.2 mm or more will have better strength,and it will not be deformed for 5-8 years under the premise of normal use.
4.In fact,too thick a thin wall is also a waste of resources,so the price will be much higher.
Misunderstanding 3:Light Hardware
1.The hardware of aluminum alloy doors and windows is not a supporting role,but the heart of doors and windows.
2.Among the materials of aluminum alloy door and window accessories,it is recommended to use die-cast zinc alloy for handles and transmission parts.
3.Aluminum alloy is used for hinges,stainless steel is used for hinge shafts and locking points,and zinc alloy or stainless steel is used for lock seats.
4.The quality of the pulley is determined by the quality of the outer wheel and the bearing.The glass fiber pulley contains roller bearings,sliding smoothly,durable and durable,the box-type closed structure is effectively dustproof,and two anti-jumping devices ensure safety and reliability when sliding.
Misunderstanding 4:light signs
1.All manufacturers of regular aluminum alloy doors and windows have production licenses,and obvious parts of the products will have product marks.
2.When buying aluminum alloy doors and windows,you need to pay attention to the identification of the signs,and you need to ask the shopping guide to show the production license of this aluminum alloy door and window brand and the certificate obtained.