If you are worried about damaging the textured finnish, use a wood block as an anvil, and a large wood mallet to straighten, even if hot. If not, use anvil and hammer. Find the low spot on the anvil,and strike over it. For radical bending, a hardy tool can be made; plate 1/2"x3"x6" long, with a 3" long rd. bar welded across each end, and a prong to fit hardy hole on underside. Place stock on rods and hit inbetween.
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