... quickly to become tempered glass or heat strengthened (HS) glass 2.TAMGLASS tempering furnace ensures glass superior ... coefficients, tempered glass is 3-4 times and HS glass is 2 times of ordinary annealed glass 5 ... ,6mm,8mm,10mm,12mm,15mm18mm etc.THK of HS glass 3mm,4mm,6mm,8mm Applications 1.Green ... . About 1100 square meters of 6mm tempered/HS glass in a 20 feet container TAMGLASS green house glass