Invitations for proposals to furnish lumber, shop machines, chain blocks, hydro-carbon burners, brake wheels, truck springs, chain, steel, iron, boiler tubes, wrought-iron pipe, wire, nails, screws, steel and manila rope, hose, shovels, spades, pipe chasers, bridge reamers, water coolers, mop heads, ax handles, compression stops, valves, steam and water gauges, lubricating cups, force cups, steam whistles, cotton waste, lubricating grease, gasoline, linseed oil, et cetera.