... 1.2mm, the surface after galvanized anti-corrosion processing6.Glass:single glazing(4mm,5,6,8,10,12mm),double(insulating)- ( ... ,insulating glass, tempered glass,obscure/frosted glass.Glass thickness range from 4mm to 24mm;PVC/aluminum grids are available between ... )sash pulley+sliding rail+handle with driving lock/(bump lock/cresenet lock/single-point lock);handles with(out)key,Anat hinge,transmission, ...