Billiard Slate A one-piece pool slate features a seamless playing surface and is commonly used for home, bar and recreational pool tables. One-piece pool slate packed in a large export wooden crate for international shipping CNC Machined Slate Precision grinding creates an ultra-flat surface for accurate and consistent ball roll. onaOne-piece slate offers a seamless playing surface and is commonly used for smaller residential pool tables.e piece pool table slate Each 9ft billiard slate set is matched and machined for accurate joint alignment, stable leveling and consistent ball roll. billiard slate thickness consistency stack billiard table workshop slate assembly cnc machining billiard slate pocket matched three piece slate seam slate fixing holes drilled pattern jiangxi billiard slate panel machined surface