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公开(公告)号：US20220010500A1
公开(公告)日：2022-01-13
申请号：US17293314
申请日：2019-11-13
Inventor： Alalea Kia , Hong S. Wong , Christopher R. Cheeseman
Abstract: Method of forming a cement-based material pad (3) comprising a plurality of drainage holes and forms for use in such a method.
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