Whether the glass of the interior door with windshield is flowerless and grade free

1 All yes, there are flowers but it looks vulgar! By the way, how to tell the difference between a glass door and a glass door:

The identification of glass quality, the difference of glass is relatively small, and the glass without impurity bubbles and with a flat surface is a qualified product. Consumers can observe the glass from the side, the glass is flat, there is no color difference, and the item is not deformed through the glass, which is a qualified product.

Identification of the amount of material, high-quality insulating glass doors and windows use high-quality profiles, while inferior insulating glass doors and windows use low-grade profiles, and some are even second-cycle profiles (the appearance is pasted with a film of well-known profiles, which is shoddy). The high-quality profile looks smooth and delicate, smooth and clean, and the color is uniform; There are no cracks, bubbles; There is no fracture and open welding at the welding; The hardness and thickness are sufficient, and the surface of the profile will not crack when hit with a hammer. The inferior profile has uneven color, bubble impurities, and will crack when knocked with a hammer, and even deformed when pinched by hand.

In addition, there is a difference in the quality of the lining steel installed in the profile. The thickness of a good lining steel is more than a millimeter, and the lining steel used in inferior profiles is often not thick enough, and there are even black-hearted merchants who put wood in the profile to deceive consumers, which should be noted. In addition, there are multiple and single cavities for profiles.

The multi-cavity profile is composed of a main cavity (installing the lining steel) and a plurality of small cavities, which has good thermal insulation and drainage performance, while the single-cavity profile does not have thermal insulation and drainage considerations.

The identification of the quantity of auxiliary materials, the quality of plastic steel insulating glass doors and windows auxiliary materials is also very critical. The auxiliary materials are mainly sealing wool strips and sealing rubber strips, the hair on the high-quality sealing wool strips should be neat in length, tight and elastic, which can effectively waterproof and dustproof, and there is a bottom plate between the two wool strips, which can prolong the service life of the wool tops. The sealing strip is also very important, the surface of the high-quality rubber strip should be smooth, the edges should be neat, elastic, and constantly pulled by hand, and it will basically return to its original state after letting go.

Insulating glass doors and windows are sealed with high-quality rubber strips, which can ensure a good sealing state for a long time, otherwise, after three or five years, the air enters the insulating glass doors and windows, and the heat and sound insulation performance of the doors and windows will be affected.

The identification of hardware accessories, seeing the quality of hardware accessories, also helps to judge the quality of insulating glass doors and windows. For example, the surface of metal materials such as hinges and door locks should be treated with anti-corrosion, such as galvanized, chrome-plated, sprayed, or made of stainless steel. Hinges, etc., should be designed to prevent the deformation of doors and windows; For door locks, try to use multi-lock locks with good anti-theft effect.