Chain conveyors; industrial conveyors; links for chain conveyors; protective links for chain conveyors; clutches and clutch components, other than being for land vehicle; couplings for use with conveyor installations; machine guides; machine guide rails; wear strips being parts of machines; clamps and sleeves for holding machine guides and machine guide rails; brackets, supports, bearing heads, clamps, spacers, hinges, feet, bushings, housings and aligning bearing supports all being parts of machines; parts and fittings for the aforesaid goods.;