Superwu 2020 Made in china Energy saving double glazed sliding aluminium window with AS2047 NFRC STANDARD

2019 Made in china Energy saving double glazed sliding aluminium window with AS2047 NFRC DADE Approved     Product Description Profiles 6063-T5 high quality thermal break aluminium profile, thickness 2.0 mm   6063-T5 high quality non-thermal break aluminium profiles, thickness 2.0 mm PVC/UPVC profiles Glass Double toughened glazing:5mm+12A+5mm (A:Air);5mm+12A+5mm tinted; 5mm+12A+5mm Low-E; 5mm+27A+5mm  Single toughened glazing: 3/4/5/6/8/10/12/15/19/21//6.38/11.76mm  Laminated glazing: 5mm+0.76+5mm, 5mm+0.38+5mm    Hardware German brand: Roto, Siegenia, Geze Australian brand: Do