Profile: Concrete Products Lincoln (1980) Ltd. is a manufacturer of concrete products. Our product line includes Armorflex®, Armorloc®, Armorturf®, Pipeflex® and Porcupine®. Our Armorflex is a flexible, interlocking matrix of concrete blocks of uniform size and weight, connected by a series of cables which pass longitudinally through preformed ducts in each unit. Our Porcupine® is an interlocking curved concrete block, which achieves its stability by the spines on the top surface of one block, matching those on the bottom of another.