Visa to visit Tokio and Canton Fairs 20

GOODMORNING I AM AN ITALIAN RESIDENT IN MACEIÓ (REGULAR rne) I WILL GO TO CHINA ON 15TH OF OCTUBER, TO TOKIO AND CANTON. I WILL VISIT THE TWO FAIRS , I PLAN TO STAY THERE 10 DIAS ON TNHE WHOLE.
DO I NEED TO APPLY FOR IT NOW?
DO I HAVE TO COME TO BRASILIA OR I CAN SEND YOU MAY PASSPORT?
I DO NOT HAVE ANY AGENCY BECAUSE I AM TRAVELING THROU ITALY AND THERE I DONT HAVE ENOUGH TIME TO MAKE THE VISA..IF I WILL NEED IT.
THANK YOU VERY MUCH
PIETRO