industrial of portal crane buckets and giant coal heaps

backdrop background blue bucket business carbon cargo carrier clamshell claw coal commerce commercial crane delivery dipper energy equipment excavation export freight grab grapple gripper harbor harbour heavy industrial industry iron loader loading logistic machine machinery marine maritime mechanical metal mooring murmansk nautical nloading outdoor outside port portal power prow quay scenic scoop sea seaport ship shipping shovel sky steel terminal trade transport transportation wharf work yellow