packed mine cart square flat icons

mining cart coal ore mineral wagon resource extraction metal industrial material rock load miningcart haul miner gemstone precious geology digging quarry underground transport freight heavy miningindustry extractionsite mineralstransport orecart miningwagon miningvehicle resourcecart rockcart minetrolley gemcart miningtrolley industrycart mineralcart oretransport miningload icons square rectangle filled simple set signs symbols