pile of metal sawdust from cnc machining, ndustrial engineering technology concept background

abstract background blue chips closeup cnc concept curly cut cutting drilling engineering environment fabrication filings flake garbage gray heap heavy industrial industry iron junk lathe machine machinery machining macro manufacture material metal metallic milling ndustrial pile production recycling rubbish sawdust scrap sharp shavings shiny silver spiral steel swarf technical technology texture trash waste white work working workshop