1. Block material type and specification: 800 * 200 * 30 thick burnt sesame black granite<br>2. Foundation and cushion: material type and thickness: 30mm thick 1:2.5 cement morta
1. Variety and specification of block materials: 800*200*30 thick burnt sesame black granite. 2. Foundation and cushion: material type and thickness: 30mm thick 1:2.5 cement mortar.