1) Specifications: 60 casement, 60 sliding, 80 sliding, 90sliding,60 Series Free-style 2) Colors: brown, gray, yellow, green 3) Good quality, with excellent performance 4) Light surface, reasonable construction, strict quality control 5) ASA / PVC colorful coextrusion profiles with high weatherproof and anti-discoloration performance, self-cleaning characteristics, not easy to collapse 6) The product has passed the inspection for new scientific and technical payoffs, and were considered to have reached the advanced international standards