Materials Standard
1、Profile:《GB5237-2008》
2、Hardwares：《JG/T 212-2007 》
3、Glass:《JGJ113-2009》
4、System Standard： 《GB8478-2008》
Product Feature：
5、Electronic and Manual operated shutter available
6、Profile:Main structure thickness 1.4mm
7、Glass: Single and Double glasses is available
8、Hardwares:Chinese top brand
9、Frame and Sash design in 45 degree angle
10、Customized profile color is available
