Materials Standard
1、Profile:《GB5237-2008》
2、Hardwares：《JG/T 212-2007 》
3、Glasses:《JGJ113-2009》
4、System Standard： 《GB8478-2008》
Product Feature：
5、Heavy duty system can endure 250KG weight
6、Profile: Main structure thickness:2.0mm
7、Glass: Double glass(optionable for built-in shutter)
8、Hardwares:Chinese top brand and Germany Brand is available
9、Water penetration resistance:>450PA; Wind Pressure:：>3500PA
10、Profile can make 2 colors
