Abstract: The present invention relates to an outer protection system for a liquefied gas storage tank, a liquefied gas storage tank comprising the same, and a method for forming the outer protection system for a liquefied gas storage tank. The outer protection system for a liquefied gas storage tank includes: an insulation part arranged on an outer surface of a storage tank body accommodating liquefied gas therein; and a protection part arranged on an outer surface of the insulation part; wherein the protection part includes: a first urea coating layer arranged on the insulation part; a second urea coating layer arranged on the first urea coating layer; and a reinforcement layer arranged in a partial region between the first urea coating layer and the second urea coating layer, the reinforcement layer including a plurality of reinforcements spaced apart from each other.

Abstract: A system for providing part selection information based on a wireless network is provided. The system includes a wireless network, a plurality of display terminals adhered to a plurality of boxes including predetermined parts which display part receipt guidance information based on externally received part selection command, and a management computer which controls and manages an operation of the entire system. The management computer includes a management table to which identification information on parts and display terminals is mapped. The management computer transmits the part selection command to a display terminal corresponding to identification information on the display terminal that is externally input.