cooling process in metallurgy or metallurgical production industry icon .

annealing background blacksmith casting circle cold cooling cylinder design ductility factory ferrous flat forge foundry furnace glowing hardening hardness heat hot icon illustration industry infographic iron isolated line logo machining manufacturing material melting metal metallurgical metallurgy microstructure mill oblique one pipe pipeline plant process production properties recrystallization rolling round sign single spray steel strength stresses structure symbol temperature treatment tube vector water web white workable