Q: 2 mm beautiful seam sew by how much pressure the ball?
a: the size of the seam pressure ball in 2 mm to 20 mm, if ceramic tile gap is 2 mm, 8 mm seam craftsmen beautiful seam an agent recommended ~ 10 mm of the seam pressure ball, good construction, use the size of the seam pressure the ball out of the seam pressure also is very beautiful.
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