background of many gray plastic dowels fastening for thermal insulation. a huge pile of plastic bolts with round holey hats lies

anchor architecture background build building color construction diameter dowel dowelumbrella equipment expanded facade fastening fix fixing fixtures foam fortifications heat home house industrial industry installation insulation material mortar object outdoor panels part peg plastic plug polyfoam polystyrene preparing repairs rubber saver spigot styrofoam technology thermal umbrella wall white