On January 8, 2014, accompanied by the rumble of the engine and under the close attention of all personnel on site, 40t crawler test vehicle successfully passed light emergency repair equipment 1:2 test piece, which marked the rational design of this product and feasibility of the development technology after wheel type carrying test. Technical personnel of the unit have had a deeper understanding and better grasp of mechanical properties and structural forming of composite materials, and have initially explored track loading and carrying anti-rolling technology and requirement of adhesion of anti-rolling layer for track loading and carrying. The successful carrying of this product has also provided valuable experience for development of relevant products of composite materials in the future.