| 摘要 |
PCT No. PCT/JP81/00032 Sec. 371 Date Sep. 29, 1982 Sec. 102(e) Date Sep. 29, 1982 PCT Filed Feb. 19, 1981 PCT Pub. No. WO82/02942 PCT Pub. Date Sep. 2, 1982.A cleaning cloth body for the inside of firearms for clearing and removing of powder, gas, dirt oil, dust, wetness, and rust from the inside of firearms. The porosity, extension-and-contraction elasticity, absorbability, heat-proof, cold-proof, durability against pulling and tearing, and abrasion-proof qualities of a foamed urethane resin is used to clean the firearm. The foamed urethane resin is made by the synthesis of polyester and diazomianate. When the foamed urethane resin, made by the synthesis of polyester and diazomianate, is molded, a net-woven cloth, is inserted between two layers of foamed urethane resin, and the size of the urethane adjusted to the caliber of the firearm.
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