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Common finishes

1. Ground outer corners, pickled inner corners
   This is the most common finish. The outer corners are ground, and the sanding direction is restored, while the inner corners remain pickled and are not ground.
2. Ground outer and inner corners
   This finish includes grinding both the outer and inner corners. Naturally, grinding inner corners is more costly. For finely welded inner corners, the aforementioned combination of ground outer corners and pickled inner corners is often sufficient.
3. Finely welded, pickled weld seams, not ground
   Although the base plate is ground, the weld seams do not necessarily need to be ground. This method is rarely chosen for outer corners.