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

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The stainless pipe in a glass tube is heated with a halogen point heater Heating of Glass and Tin Heating of glass and lead Heating of glass and Aluminum Dissolution of black glass beads with a halogen point heater HPH-160/f40 Heating dissolution of green glass pieces with a halogen point heater HPH-160 / f40 Heating dissolution of brown glass pieces with a halogen point heater HPH-160 / f40 Hot-air drying of the glass bottle