| 摘要 |
PROBLEM TO BE SOLVED: To provide a civil engineering bag body for forming a civil engineering structure easily handled according to work environment while ensuring sufficient strength by easily adjusting balance between strength and weight. SOLUTION: The civil engineering bag body is formed as a cylindrical woven fabric of double cylinder structure having an outer cylinder 11 and an inner cylinder 12, and the inner cylinder 12 is disposed to extend along the longitudinal direction of the outer cylinder 11 within the outer cylinder 11. COPYRIGHT: (C)2007,JPO&INPIT
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