This video is Green glass coating by the Halogen Point Heater.

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Green glass coating－１ Clear glass coating Heating dissolution of green glass pieces with a halogen point heater HPH-160 / f40 Heating of glass and lead Heating of Glass and Tin Heating of glass and Aluminum Dissolution of black glass beads with a halogen point heater HPH-160/f40 Heating dissolution of brown glass pieces with a halogen point heater HPH-160 / f40