Each container, compartment, truck or vehicle containing grain, feeds or feedstuffs which have been weighed by a public weigher shall have a lead-wire seal or seals affixed in such a manner that no loss or delivery of the contents may be made without destroying or mutilating the seal or seals. Each container, compartment, truck or vehicle transporting bulk grain, feeds or feedstuffs while in transit delivery shall remain sealed until delivery is completed. The actual net weight of the contents of a container, compartment, truck or vehicle of grain, feeds or feedstuffs shall be stated in the receipt or bill effecting deliveries between the seller and buyer of such grain, feeds or feedstuffs. Grain, feeds or feedstuffs packed in bags or sacks used in bulk delivery to the buyer, when the bags and sacks are representative of the quantity contained in the container, compartment, truck or vehicle used for transporting or delivering such commodities, shall bear the name, brand or trademark under which the article is sold, and the net weight of the contents shall appear distinctly on a label or as a printed statement affixed to each bag or sack. The provisions of this section shall not apply to deliveries by barge or railway track car.