I confrimed the person in charge (Mr Shinizu Yoshiharu) who issued engineering change D0598 (630721J ⇒ 630721K1).He said that it is no problem to use 630721J in our production.So I can not understand why 生産管理部 say that we can not use 630721J in our production.Could you please ask 生産管理部 how they confirmed this matter ?Did they really check with MJ (Mr Shinizu Yoshiharu) ?Sorry to bother you.