| 摘要 |
An improved wiper element for a pipe ID comprising a resilient wiping element mounted on a pipe wiper mandrel. The wiper element further having oppositely disposed petals to enable wiping within a large pipe, and opposing petals are defined by transverse edge extending outwardly along the petals, wherein the edges define a corner at the outer periphery of the petals and further comprising a chamfered face at the corners the enable the corners to overlap when brought into an abutting relationship.
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