Machinery; equipment, machine tools, implements and spare parts therefor including equipment, machine tools, implements and spare parts for agricultural, construction, quarrying, mining, underground mining and earth moving machinery including abrasion protection attachable sheeting, wear parts and plates, and components for locking and/or fastening and/or attaching the sheeting, wear parts and/or plates to the machinery; agricultural machines, agricultural implements other than hand-operated, and their parts; construction machines and apparatus and their parts; quarrying machines and their parts; mining machines and apparatus and their parts; underground mining machines and their parts; earth moving machinery and their parts; power shovels; shovels; scoops; excavators; shovel loaders; buckets and bucket parts including lips, teeth, bucket edge, lip shroud, wing shroud and heel shroud components; blocks, chocks and wedges; draglines; shrouding for draglines, shovels and excavators; retaining systems for use with ground engaging tools on earthmoving and mining equipment; wear teeth attachment devices; lock assemblies for securing machine parts and apparatus including wear teeth