... world Imported linear square rails Professional in stone/granite/marble engraving 1>imported linear square rails, dual four slider, ... long life, under the knife precision. 2> The CNC Stone Engraving Machine seamless welded steel structure, rigid Haobu deformation, table back ... cooling system, effectively raising tool life Scope: Granite, marble, Qingshi, sandstone, and other stone carvings Granite and ...