The design incorporated 15 tubular heaters and 6 croquignole.
2.
Because of expense, the early models only had a few tubular heaters, and permanent-waving process took place in more than one stage.
3.
The trend was to replace some of the tubular heaters on the sides of the head with croquignole ones, to allow greater scope of styling.
4.
VBC Manufacturing Sdn Bhd manufactures tubular heater, cartridge heater, infrared ceramic / silica / quartz heater, Mica band and strip heater, Thermocouples, and Current Transformer, basically for industrial heaterand more towards custom-made products.
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