خطوات عملية الطحن للوحة سطح الجرانيت
Grinding process steps for granite precision mechanical platform 1. Pre-treatment: Check the appearance of the granite platform that been roughly processed, remove surface cracks, sand holes and other defects, then clean the surface dust and oil stains, and let it dry for later use. 2. Cl and positioning: Use vacuum suction cups or special clamping…