Materials Standard
1、Profile:《GB5237-2008》
2、Hardwares：《JG/T 212-2007 》
3、Glass:《JGJ113-2009》
4、System Standard： 《GB8478-2008》
Product Feature：
5、American casement window system with detachable fly screen available
6、Profile:Main structure thickness 1.5mm
7、Glass: Double glasses is available(Optionable for built in shutter)
8、Hardwares: Truth Foldable crank handle
9、Customized profile color is available
