Hangzhou Qijia Bargaining Teacher ugly style
2018-07-07 05:01:34
A look at profiles: profile quality is good or bad, directly determine the pros and cons of doors and windows, with poor quality production of doors and windows of low intensity, easy to change color, deformation. Requirements for profiles: (1) Appearance: natural color, smooth surface, uniform and uniform. (B), multi-cavity structure: There is an independent drainage cavity and steel reinforcement cavity to prevent corrosion of steel lining, and better play the role of heat insulation and noise reduction. (C), have a certain degree of strength and flexibility. (d) In order to eliminate lead poisoning, lead-free green profiles should be used.
Second, look at accessories: Hardware, steel lining, tops and other accessories is the key to the production of high-quality doors and windows, plastic steel doors and windows with insulating glass, the weight per square meter may exceed 40 kilograms, so the requirements for a variety of accessories is high. The quality of accessories varies from manufacturer to manufacturer, and prices vary by several times. Inadequate use of inferior accessories will result in damage, resulting in drooping of window sashes, push-pull motion, sluggish switching, poor sealing, and even potential safety hazards. There are many hard lessons in this regard.
Third, look at production: production equipment and processes determine whether the overall performance of doors and windows is good. According to the requirements of national standards, the difference between diagonals of steel doors and windows should be controlled within 2-3 millimeters, with strict process parameters and control range. This requires a certain amount of production equipment and processes to ensure that there is a quality workforce. . Therefore, the quality of steel doors and windows produced by street-level workshops and regular manufacturers is very different.
Four to see the installation: three-point production, seven-point installation, if you do not pay attention to the installation standards, it may cause future deformation of doors and windows. The coefficient of thermal expansion of steel doors and windows is almost 6 times that of steel, so expansion joints must be left between the window frames and the wall to prevent thermal expansion and contraction or slight settlement of the house to deform the doors and windows. At the same time, in order to ensure the waterproof, heat preservation and sound insulation performance, the expansion joint must be filled with elastic material and then sealed with a sealant. The prices of these materials are relatively high, and the quality varies greatly. It is necessary to strictly prevent the cutting of materials and shoddy materials during installation.
Five services: plastic steel doors and windows have a lifetime of more than 30 years. In the course of use, it is inevitable that there will be glass breakage, hardware damage, etc., and the user is more difficult to solve their own, which requires manufacturers to provide long-term and perfect after-sales service, select the regular manufacturers Certainly more reliable than the flow action.
Six to see the price: the price to shop around, but must be based on the same material and performance than the price, if a greedy cheap, the price is not weighed against the performance, the user is always the loss
Second, look at accessories: Hardware, steel lining, tops and other accessories is the key to the production of high-quality doors and windows, plastic steel doors and windows with insulating glass, the weight per square meter may exceed 40 kilograms, so the requirements for a variety of accessories is high. The quality of accessories varies from manufacturer to manufacturer, and prices vary by several times. Inadequate use of inferior accessories will result in damage, resulting in drooping of window sashes, push-pull motion, sluggish switching, poor sealing, and even potential safety hazards. There are many hard lessons in this regard.
Third, look at production: production equipment and processes determine whether the overall performance of doors and windows is good. According to the requirements of national standards, the difference between diagonals of steel doors and windows should be controlled within 2-3 millimeters, with strict process parameters and control range. This requires a certain amount of production equipment and processes to ensure that there is a quality workforce. . Therefore, the quality of steel doors and windows produced by street-level workshops and regular manufacturers is very different.
Four to see the installation: three-point production, seven-point installation, if you do not pay attention to the installation standards, it may cause future deformation of doors and windows. The coefficient of thermal expansion of steel doors and windows is almost 6 times that of steel, so expansion joints must be left between the window frames and the wall to prevent thermal expansion and contraction or slight settlement of the house to deform the doors and windows. At the same time, in order to ensure the waterproof, heat preservation and sound insulation performance, the expansion joint must be filled with elastic material and then sealed with a sealant. The prices of these materials are relatively high, and the quality varies greatly. It is necessary to strictly prevent the cutting of materials and shoddy materials during installation.
Five services: plastic steel doors and windows have a lifetime of more than 30 years. In the course of use, it is inevitable that there will be glass breakage, hardware damage, etc., and the user is more difficult to solve their own, which requires manufacturers to provide long-term and perfect after-sales service, select the regular manufacturers Certainly more reliable than the flow action.
Six to see the price: the price to shop around, but must be based on the same material and performance than the price, if a greedy cheap, the price is not weighed against the performance, the user is always the loss
Doors, windows, hardware, doors, prices, glass, switch, housing, glass, glass doors
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Fenghua Jade Motor Co., Ltd. , http://www.composite-hose-supplier.com