... polishing above 90 degree factory direct sale 1. Raw Material>>> marble, granite, sandstone, basalt, slate, ect compact structure, texture hard, high ... we can do it as your design. 5. Usage>>> Mainly for hotels, restaurants, the lobby, home decor 6. other information>>> Surface ... Degree: 90 degree up; Thickness tolerance: +/- 0.5, +/-1mm Thanks for your time to read this product information, i hope it ...