Length and width tolerances of insulating glass table. The length or width of the tolerance (mm) L <1000 ± 2.01000≤L <2000 + 2, the thickness of the insulating glass -3L≥2000 ± 3.0③ tolerance table. Glass thickness Nominal thickness (mm) Tolerance (mm): hollow glass nominal thickness of two glass thickness and the thickness of the spacer frame. ④ hollow glass two diagonal tolerance table. The difference between square and rectangular hollow glass diagonal should not exceed 0.2% of the average length of the diagonal. The use of insulating glass insulating glass are used primarily for heating, air conditioning, preventing condensation and noise or no direct sunlight and need special light buildings. Widely used in the case of indoor air conditioning needs of residential, restaurants, hotels, office buildings, schools, hospitals and shops. It can also be used in trains, cars, ships, freezer doors and windows and other places. Acting hollow glass aluminum gutter: the aluminum is known as active metal elements, but in the air, the surface will form a dense oxide film 595 hollow glass, so that it can not continue to function and oxygen and water. At high temperatures react with oxygen hollow glass curtain and emit a lot of heat, with such a high heat of reaction, the aluminum can be replaced with metal (aluminum thermal method) [1] 612a6 insulating glass from other oxides, Yaohui quality (Online Consulting), Zaozhuang hollow glass provided by Jinan Glass Co., Ltd. Yaohui. Jinan Yaohui Glass Co., Ltd. (www.jyhhc.com/) Shandong Jinan, architectural glass leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Yaohui glass in Jinan leadership with the staff warmly welcome all inquiries negotiations to create the Jinan Yaohui glass better future.