| 摘要 |
An invention that uses a convex shaped tool in the application and smoothing of concrete, but also can be used in other fields where needed where there is a concave surface. This trowel will be a big help in many variety of fields that has to deal with different degrees of concave surfaces. This trowel has a need to come in many different sizes, convex shapes, and composition depending on the need in the desired job being worked on. This trowel will be a big help in areas of concave surfaces where before there was no universal tool to do those jobs quickly and efficiently.
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