Top brand prize winner--- Guangdong Dejiyoupin Doors & Windows！
Aluminum alloy doors and windows must meet the specifications
1.Aluminum glass windows specifications and its models must meet the design requirements, otherwise the products produced are very troublesome to assemble, and the hardware accessories of aluminum alloy doors and windows are required to be complete. All these accessories have the product factory certificate, Material inspection report and stamped by the manufacturer.
2. Aluminum alloy doors and windows need to be tested for wind pressure resistance, air permeability and rainwater rope performance. Each of these properties must meet the design requirements and relevant standards.
3. For windows and doors with insulation requirements, the insulation performance must be tested, and the performance must meet the design requirements and relevant standards.
International Window Door, aluminum sliding door, tempered glass sliding window