Stone Polish-SPI C class mold finish standard Non-Cosmetic, Stone Polish SPI Finish C-1 — 600 Grit Stone SPI Finish C-2 — 400 Grit Stone SPI Finish C-3 — 320 Grit Stone By admin|2017-03-18T09:05:52+00:00October 6th, 2016|SPI Mold Finish Standard|Comments Off on Stone Polish-SPI C class mold finish standard Share This Story, Choose Your Platform! FacebookTwitterLinkedInEmail About the Author: admin