LPG bottle filling have a wide range of applications. Most are used to fill and un-fill LPG bottles made of plastic. The plastic is then hardened by a heat process. This hardens plastic to the point where it can be removed from the barrel and used to fill other types of bottles. The process used to harden the plastic is referred to as "cold hammer forging" or "cold cast." The process is a bit more complicated than just heating a plastic, though. The cold hammer forging process requires the plastic to be heated to a high enough temperature to melt the plastic to a liquid state. Once the plastic has been heated, the plastic is then cooled and the process is repeated until the plastic is hard as a rock. The process is also referred to as "cold welding" or "cold casting," or "cold forming."The process is a lot more complicated than just heating the plastic. To complete the process, the plastic is first cooled to a specific temperature. What are the main application areas of LPG bottle filling?The main application areas are fuel, water and electricity. Fuel is a major concern, as it is a major source of greenhouse gas is a concern, as it is a major source of fertiliser used in agriculture. The use of water for drinking and irrigation is increasing, in particular in the developing is a major source of consumption in the developed world. However, in the developing world, energy consumption is falling and is projected to decline further in the developing countries, the main source of electricity is from solar and wind power, as well as from hydro power. However, in the developed world, the main source of electricity is from coal and nuclear main challenge in the short term is to improve the efficiency of fuel and water recycling and to reduce the environmental impact of the production of LPG.