Aim\ The reversing design on the whole of production line under fuzzy theory is going on in this paper

which enable the producton line go through properly by renewing some key parts. Methods\ Reversing of production system is presented in this paper. Results\ This technology has been used to the reversing of the production line which is imported to roll some kinds of complicated shape steel

and it makes good product produced on the production line which had been spoiled. Two new production lines have been designed under the self developed reverse system and they make the profits of several millions RMB. Conclusion\ The new concept

Revering of Production System

could be applied to various fields of quick response of variable batch production.