The casement window logo identifies regular manufacturers or manufacturers with production licenses, and the product logo is marked on obvious parts of its aluminum alloy products, including: factory name or trademark, product name, product model or mark , date or number.

The packaging box should have obvious words and signs of "moisture-proof", "handle with care" and "upward".

Doors and windows with good quality casement windows are more secure in terms of sound insulation, sealing, flame retardancy, etc., and their service life will be longer than ordinary doors and windows.

Performance of casement windows. The performance of doors and windows has different focuses due to different scopes of use, but the following aspects should usually be considered: Strength, which is mainly reflected in the selection of profiles for doors and windows. It can withstand ultra-high pressure; air tightness is mainly reflected in the structure of doors and windows, whether the inner sash and outer frame structure of doors and windows are tight, and whether doors and windows are tight.

Consumers of casement window glass should choose good glass when choosing windows.

Nowadays, the doors and windows produced by regular manufacturers mainly use float glass and low-emissivity coated glass.

Float glass is much better than flat glass in terms of heat insulation, heat preservation, light transmission and avoiding visual distortion; low-emissivity coated glass has better quality in terms of heat insulation, heat preservation, light transmission and filtering out ultraviolet rays. excellent.

So when replacing doors and windows, consumers should try to consider using float glass and low-emissivity coated glass.

In addition to the materials for casement window installation, the installation level also has a great impact on the final effect of doors and windows. Generally, merchants are responsible for the installation of doors and windows, so the installation level should be inspected. The best way is to go to Go take a look at the construction site where it has been installed.

In addition, you need to feel the feel.

As for the process and quality of the product, we are unlikely to go to the manufacturer to see how it is. We can only evaluate the process quality of the product through simple appearance inspection.

Here are two things to teach you: touching with your hands and looking from the side.

Rub the frame, panel, and corners of the door with your hands, making sure there is no scratching, softness and delicateness. Then stand on the side of the door and face the light to see if there are uneven waves on the paint surface of the door panel.

Basically, you can know whether the workmanship is qualified by these two steps.