Slabs are generally 1.6–2.0 m wide and 2.8–3.3 m long, with common thicknesses of 18, 20, and 30 mm. Special thicknesses are available upon request.
They are graded as A, B, or C based on veining, color variation, and imperfections: Grade A is the highest quality, while Grade C has more repairs and is lower in price.
Polished, semi-polished, acid-washed, lychee/flame-treated, brushed, sandblasted, etc.; polished or semi-polished finishes are most commonly chosen for countertops.
Granite is hard, has low water absorption, and is resistant to acids, alkalis, and freezing; it is suitable for outdoor use and kitchen countertops. Marble has beautiful patterns but is sensitive to acids; it is mostly used for interior decoration and crafts.
Plaza paving, steps, dry-hung exterior walls, curtain walls, tombstones, landscape stones, etc.; flamed or lychee finishes offer better slip resistance.
Granite is the preferred choice for kitchens (as it is wear-resistant, heat-resistant, and easy to maintain); marble is suitable for decorative applications with low usage frequency. Common thicknesses are 20/30 mm; use 30 mm for islands or cantilevered countertops.
Apply a penetrating sealant (granite: once every 1–2 years; marble requires more frequent application), wipe with a neutral cleaner, and avoid direct contact with acids, alkalis, or hot pots.