English translation: Gritting and Butterfly (stroke, shape)
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12:15 Aug 30, 2000
Dutch to English translations [PRO] Tech/Engineering
Dutch term or phrase:instrooien en vlinderen
This is done after a concrete floor has been cast. I think it is a way of creating a finish tothe floor. It is in a Metro station construction.
Thanks! According to a Dutch flooring contractor vlinderen in the context of concrete finishing is helecoptering in English. This is a mechanical means of getting a smooth finish on concrete. 2 KudoZ points were awarded for this answer