[DIY furnace usage]: the furnace is a foreign trade product with English instructions (please be careful if you mind), which is easy to use, only need to put the raw materials into the heating an aluminum pot (large pieces of raw materials need to be chopped and then put into the pot), first adjust the heating switch to the second gear (about 70 degrees, while melting and stirring), after the raw materials are completely melted, adjust the switch to the first gear (about 40 degrees, keep the temperature in the solution state), then pour the solution into the DIY mold, and cool it naturally for about 5 minutes, put it in the refrigerator for about 60 minutes, and finally completely cool it into hard blocks to complete all DIY production processes.