老哥俱乐部 construction Wanda Group crystal series double glass shutters and glass doors project, through rigorous mechanical professional testing, profile design thickness of the orderly, wall thickness of 3.0-4.2mm, its strength is much higher than other similar products in the market; National aluminum alloy profiles of high precision level. The wall thickness is 80mm. Skeleton structure is used bite-type buckle design, solid and stable, fully in line with ISO7892 vertical component anti-impact test international standards!