| 摘要 |
<p>A waste water treatment body is a pipe matrix and consists of a number of separable blocks of material (21, 22, 23, 36) incorporating pipes (24, 29, 30) whose outer mantle is formed by a net structure; one of the pipes (31, 37, 38, 39) extends over a number of blocks (21, 22, 23, 36). Also claimed is a process to manufacture the matrix by weld-joining the pipes at their ends and expelling loose pipes (31, 37, 38, 39) from the blocks (21, 22, 23, 36, 40, 45).</p> |
