Medium Duty Isuzu NPR Dry Freight Express Trucks - lighter weight contributes to lighter bodies and increased payload. Medium Duty Isuzu NPR Dry Freight Express Trucks are made from FRP Honeycomb-cored panels; it is made of prefabricated fiberglass reinforced faceplate and high strength woven roving and quality PP Honeycomb by vacuum bonded together in high pressure. High strength woven roving ...