| 摘要 |
A length of material comprises a first support tail 469 and a filter portion wherein the first support tail 469 has an open structure and the filter portion has a filtering structure. A first support tail 469 may be connected to a first end of the filter portion and a second support tail may be connected to a second end of the filter portion. The support tails 469 are preferably formed from at least two strips of material arranged in parallel such that one or more rectangular pores 467 are arranged between the strips of material. The pores 467 in the support tail 469 can be square, circular or rectangular in shape. The length of material may form part of a regenerative filter. |
