... 18"×18") d)600×600mm(24"×24") e)1200×1200mm(48"×48") f)customzed sizes.2) Thickness: 10mm,15mm, 20mm, ... flamed, bush-hammered,axed,sandblasted, natural split,ect.4) Slab size available: a) 600up×1200up×20-30mm b) 700up× ... and finish can be decided by customer's design.5) Usage: floor tiles, countertop slab, vanity top, tombstone, step, etc ... Russia, Asia, etc. high quality Chinese black granite slab