From the use of fire to cook foodstuff, to clear land, and to furnish warmth and illumination in caves or hovels, fire is applied to vessels of clay to make pottery and also to items of ore to acquire copper and tin, to combine these for making bronze ( Early https://fireratedductworthinsulat56778.weblogco.com/36770327/rumored-buzz-on-fire-rated-ductworth-insulation