| 摘要 |
PURPOSE: A GEO tube and a manufacture method thereof are provided to improve tensile force and to make sewing-process simple. CONSTITUTION: A plurality of charging posts(100) are on a fabric(1) in which liquid can pass through but solid cannot pass through. A form which can fold in longitudinal direction with the duplex is made to be screw shape. Longitudinal direction one side of the fabric with form, a folded part with screw shape, is sewn. A duplex overlapping sewing line is formed by sewing. |
