... -sliding, single-hung, double-hung, etc.Specification(size, color,etc.)Different countries have different demands for it; Special shaped ... double glass with grilleLow-E glass, Tempered glass, floated glass, reflective glass, OBS glass, etc.Thickness: 4mm, 5mm,6mm,8mm ... , 1.5mm, 2.0mm, 2.5mmSealRubber sealing strip, black or grey colorHardwareHigh quality Chinese hardware, (Multi-point lock and handle) , ...