ã€China Aluminum Industry Network】 (1) The wall thickness of the profile used for the main bearing elements, such as outer door, window frame, fan, and splitting, is determined by design or experiment. The wall thickness of the main force-receiving area of ​​the section is smaller than the actual wall thickness, the outer door should not be less than 2mm, and the outer window should not be less than 1.4mm. (2) The thickness of the surface treatment layer of the aluminum alloy profile should meet the requirements in the following table. (3) The appearance of the product should be free of aluminum chips, burrs, and oil stains; the gap of the sealant should be continuous and smooth, and there should be no spillage of the adhesive at the link. The seal should be installed in place and there should be no disengagement. (4) Door and window frame fan The surface of the aluminum alloy profile shall not have obvious defects such as color difference, unevenness, scratches, scratches, and bumps. In a glass compartment, scratches and scratches on the surface of the aluminum alloy profile shall comply with the following table. (5) Doors and windows with a combination of two or more singly-open doors and windows with a splicing and splicing connection shall have a height and width dimension that conforms to the dimensions of the openings specified in GB/T 5824. (6) The allowable deviation of the size and shape of the doors and windows and the deviation of the assembled size of the frame fan shall meet the requirements in the following table. Cob Par Light ,Led Cob Par,Cob Led Par Light,Cob Led Stage Lighting Big Dipper Laser Science And Technology Co., Ltd , https://www.bigdipper-laser.com