Because the using conditions of the heavy truck Auto load tire are exceptionally rigor, and it is strict to tire's quality requirement, the tire technology development and the process is also very difficult, all the technical personnel unceasingly demonstrated, tested repeated and tries to find out the innovation positively under concern and the instruction from Company Leaders who are at all levels,, they has completed the 33.00R51 specification design and the trial manufacturing finally. The cords of ply is specific for giant OTR ply cord which is new developed and enable the tyre to firm durable. The tread rubber uses ultra wear-resisting, the ultra anti-cutting formula, enables the tire to have outstanding anti-cutting, wear-resisting and the anti-thorn grips the performance.