Item 1: the thickness of profile directly determines the quality of copper aluminum door. When consumers choose copper and aluminum doors, they should not choose copper and aluminum doors with too thin profiles for the sake of cheapness.

Item 2: look at the seal and the glass layer seal

Another feature of copper aluminum door is strong decoration. The reporter visited some building materials stores and found that most of the copper and aluminum doors are inlaid with various kinds of art glass. These glass have monolayer, also have stereo feeling strong, sound insulation effect good double-layer insulating glass.

Copper and aluminum door experts, choose with inlaid glass copper and aluminum door, especially the use of insulating glass design products, we must pay attention to its sealing performance. If the sealing is not good, it will lead to the hollow layer of dirt, affect the appearance. The brand products are sealed with good sealing strip and advanced hot pressing sealing technology, which can effectively prevent dust and water, and have outstanding sound insulation effect.

Reminder: to check the tightness of the glass partition layer of the copper aluminum door, in addition to checking whether the glass glue coating on the front is tight, it is also necessary to check whether the sealing strip on the glass on the back of the door is flat, and there is no curling and no sloughing.

Item 3: see if there are defects in the process welding

"The production process of copper aluminum door is relatively simple, many small manufacturers can produce, but the quality mainly depends on whether the production process is fine." According to experts of copper aluminum door, the welding process reflects the quality of copper aluminum door. Copper aluminum door, processing fine, welding stress, especially some splicing parts are very flat. The poor quality aluminum alloy doors and windows, blind selection of copper and aluminum door material series and specifications, rough processing, door frame corner and other positions can not be spliced flat, sometimes even a large gap.

Consumers should pay special attention to check whether there are welding defects, such as open welding, missing welding and so on. It also depends on whether the door leaf and door frame are closed tightly, whether the gap is uniform, and whether the opening is flexible.

Reminder: after checking the welding process of copper aluminum door, consumers should also carefully check whether the paint surface of the product is bright in color and clear in texture, and pay attention to no obvious scratch, bubble and other defects on the paint surface.

Item 4: select accessories and pay attention to the quality of hardware

Copper aluminum door is usually installed in the bathroom, kitchen and other humid environment, so the quality of hardware hinge, door handle and other accessories is the key to ensure the service life of copper aluminum door.