Marble Steps own quarry, local resources polishing above 90 degree factory direct sale 1. Raw Material>>> marble, granite, sandstone, basalt, slate, ect compact structure, ... . Edge Finish >>> eased polished, full bullnose, half bullnose, semicircular, 1/4 radius, 1/2 radius, ect 3. Package>>> Inner: Cartons or foamed plastics Outer ...