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American Standard: ASTM C-121 (S1), ASTM C-217 (S1), ASTM C-120 (S1), European Standard: EN 12326, British Standard: BS 680 Part 2 Cupa Pizarras CUPA 14 is a non-carbonated slate formed by ...
No matter where it's from, all slate is a type of natural stone (or ... It's available in various naturally occurring colors: ...