发明申请
US20060151042A1 Pipe liner 审中-公开
管内衬

Pipe liner
摘要:
A liner for pipe, methods to make liners, and methods for using them, the liner in one aspect including as a first layer a hollow cylinder of polymeric material, a second layer of wrap material around the first layer, a third layer of wrap material wrapped around the second layer, at least one strengthener member on the liner and extending from a first end thereof to a second thereof, and an exterior cover, the liner being a stand-alone structure.
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