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　Helicopter External Hanging Oil Bag is three-dimensional guarantee equipment for oil newly developed by the enterprise and research unit. It is mainly used for three-dimensional oil supply in contingency situations when other means of supply fails.
　　Helicopter External Hanging Oil Bag is made up of (1) octagon oil storage container bonded by special technology of antistatic laminate fabric coated with polyurethane on both sides, and (2) suspension bag made by biaxial weaving, high-strength and tearing-resistant laminate fabric coated with polyurethane on both sides.
　　Bag is equipped with self sealing valve for filling and pumping oil from the oil bag. While supplying oil for equipment, pressure controller can be used to open self sealing valve. The filling of oil will be stopped when the pressure in the oil bag reaches operating pressure. A hanging basket is installed on the top of suspension bag for external hanging of helicopter.