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Make your own ETCHING UNIT This chapter will describe how to make your own super-delux etching unit with air pump and temperature controlled heater. Required materials an aquarium heater with built in thermostat. Approx
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Document Date: 2011-12-23 22:56:49
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Make your own ETCHING UNIT This chapter will describe how to make your own super-delux etching unit with air pump and temperature controlled heater. Required materials an aquarium heater with built in thermostat. Approx