Screen Fabric: All use Phife Screen of the highest quality , which are avirulent insipidity , anti-corrosion , antiflaming ,  easy clean , ametabolic , longer service life .

      Spring :      Material is Mn 65^{# ,} which surface is processed by Dacrolon-tech. It doesnt rust . and nimble and light to use.

      Accessories :  Material is PA6 , excellent mechanical strength and toughness ,and chemical resistance , dimension stability , low dilatation .

      Aluminum Alloy Profile : Material is 6063-T5 of high intensity . Oxidize , Heattinting , Spray powder are available . Many colors are at your choice .

     Package: vacuum forming and carton , can be sold in supermarket , and can DIY