W.hat Does Sleeve Mean?
一种sleeve is a liner, the outside of which is coated with a resin, which is inserted into a damaged pipe in the trenchless rehabilitation process referred to as relining or pipe relining.
套筒可以由涂有聚氯乙烯(PVC)的纤维增强塑料或聚酯制成。套筒被拉入损坏的管道(称为“主管”),使其隔离受损区域并膨胀,直到其外部树脂涂覆的表面接触主管的壁。