| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible sheet for safely, easily and inexpensively regulating the positions of weights and centroids sporting goods, machines, trial products and products, etc., with easy repetitive trials. SOLUTION: The flexible sheet is provided with a weight of >=0.08 g/cm2 in weight per unit area by fixing solids of specific gravity >=4.5, of 0.1 to 1 mm in the length of the longest part of particles of various shapes when the solids are the particles or plates at >=5 pieces per 1 cm2 in the sheet parts if the solids are like rods or between the sheet parts and adhesives or in the adhesives. The flexible sheet having the thickness <=0.5 mm and a weight of >=0.08 g/cm2 is obtained. The sheet may be coated or may mot be coated with the adhesives. The total weight of the sheet is previously distinctly elucidated. |
