Type: 50 50mm, 10 50mm, 21 75mm, 3pcs/set (Optional). Rolling Part Size: approx. 50 50mm / 1.97 1.97in, 10 50mm / 0.39 1.97in, 21 75mm / 0.83 2.95in. This is a fiberglass roller used to compact the resin coating and drive bubble at surface and internal of FRP product.
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