| 摘要 |
An improved grate 601 is made from a plurality of elongate grate pieces 602, each grate piece 602 having a body 603 with a first end 604 and a second end 605. Each grate piece 602 has the first end 604 angled with respect to the body 603 and the second end 605 angled with respect to the body 603. When the first end 604 of a grate piece 602a is welded to the first end of an adjacent grate piece 602b, and the second end 605 of the grate piece 602a is welded to the second end of the adjacent grate piece 602b so as to form the grate 601, a gap is formed between the respective bodies of the grate pieces 602 to permit the drainage of liquid between the grate pieces. By varying the angles at which the grate pieces 602 are welded together sections of grate with both horizontal and vertical curvature can be formed.
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