Weld-on chain tops are used widely in the lumber industry and have many advantages. The orange UHMW Chain Tops are great for applications where non-marking and back-up loads are a concern. The low friction surface is used in areas such as planed lumber conveyors, transfer conveyors, stackers/unstackers, etc. The softer high grip chain tops are again non-marking and have a grip surface for areas with incline and decline. These chain tops are all manufactured with a large carrying surface and thick 12 gauge steel for easy welding.