YN-1313 multi-head cnc router 1 multi-head improve efficiency greatly 2 special design for heavy material 3 ... is our basic tenet.Application:a. All kinds of heavy weight of the tile, bluestone, marble, granite, white marble, sandstone, such ... copper, ceramic, glass and micro-crystal stone etc.Optional parts:1. Vacuum system for wood carving (vacuum table, dust collecting system ...