Clay Crucible for melting metal , silver, gold, copper, aluminum 5KG ,Rated to withstand temperatures up to 1560F - 2912 F (850C - 1600C) This crucible has strong corrosion resistance to acid and alkaline solution, and has chemical stability and thermal shock resistance. Perfect for use with propane melting furnaces Colour: black Material: Package Contents: 1 * Crucibles Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store