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QUARTZ STONE STAIN RESISTANCE TEST

TEST OBJECT: QUARTZ STONE CALACATTA 8021 (PURE WHITE BACKGROUND) SAMPLE 30X30CMTEST TIME: 1.5 HOURSTEST RESULT: NO STAIN REMAINS IN THE STUDY, RED WINE, BAIJIU, KETCHUP, SOY SAUCE, VINEGAR, PEANUT OIL, BEAN SAUCE, AND MILK WERE USED. CONTACT US AT CONTACT:…





