Soil solarization. Follow these four steps to solarize your soil: cultivate and remove plant matter; level and smooth the soil; irrigate; and lay a clear tarp on the soil surface for 4 to 8 weeks, depending on local conditions.
Die casting is a manufacturing process that can produce geometrically complex metal parts through the use of reusable molds, called dies. The die casting process involves the use of a furnace, metal, die casting machine, and die. The metal, typically a non-ferrous alloy such as aluminum or zinc, is melted in the furnace and then injected into the dies in the die casting machine.
The metal is produced by smelting the ore, which is cassiterite and is made up of tin (IV) oxide (SnO2). This ore is treated to remove sulphides of lead, bismuth, antimony, zinc, silver copper and iron, and then smelted in either a blast furnace or a reverberatory furnace with coke or anthracite to produce liquid tin.