| 摘要 |
The cutting line (1) has a monofilament core (2) of a synthetic material, such as polyamide, with a coating (3) of a granular material which gives it an irregular or rough outer surface. The monofilament core can have a cross-section which is round, stellate or toothed, and the coating granules can be of mineral particles such as silica, glass, fine sand, emery or marble, or they can be of metal, such as zinc, iron or aluminium, especially a powdered oxide. The granules can also be of an abrasive synthetic material, such as powdered polyamide 11. The coating can be applied by co-extrusion, adhesion or dipping. |
