technological background from sheet painted metal or plastic bolted. black realistic metallic bluing steel backdrop. chrome bolts

background black blank blued blueing bluing board bolt bolted bolts build button cap carbon chrome closeup construct construction dark design detail diagonal empty fastening frame gllossy gray hardware hat head hex hexahedral icon illustration industrial industry isolated light macro manual mechanic metal metallic metalware metalwares painted panel part plaque plastic plate polished realistic rectangular reliable repair screw screws sheet shiny signboard silver smooth space stainless steel technology texture tool top vector view wallpaper white