Excavating teeth for excavating, earth-scraping and earth-moving machinery; wear parts for excavating, earth-scraping and crushing equipment, including: bits and blades for bulldozers, scrapers, excavators and other earth-working equipment; shrouds for such equipment, particularly wear-resistant shrouds, being replaceable covering elements for the wear edges on excavator buckets and the like equipment; replacement edges for blades of such equipment; and parts of and accessories for such goods as are included in this class