... irregular blocks, thus save material cost.<2 top flamed, bottom sawn, other 4 sides natural.<3 top flamed, other 5 sides ... natural.<4 all sides machine sawn.<5 Other finishing like bush-hammered, fine-picked, chiseled, tumbled ... and front sides flamed and others sides machine sawn, all sides machine sawn etc.Paving stone tilesPaving stone tiles are often used ...