| 摘要 |
The walking surface for cattle is of concrete or asphalt, covered by a flat plastics net (20). The net openings (25) are defined by the net bars (24), at intervals of 4-12 cm, and extend to a height of 1-3 mm over the base surface (10), with a width of 3-10 mm. The intersections are at the same height as the net bars. The base has grooved channels to take off liquids. |
