| 摘要 |
PURPOSE: A fiber sheet of a net form for water proof is provided to prevent deformation of a through-hole and to maximize tensile strength of the fiber sheet and durability. CONSTITUTION: A fiber sheet(100) of a net form for water proof comprises: a tightly knitted part(10); a through-hole(11) which is vertically and horizontally formed in a same interval; a - shaped connection yarn which is thin and durable and penetrates the through-hole. The connection yarn is formed in Y-shape(or + shape or * shape).
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