... , carton is 50*29*33 = 0.048 CBMSize 4 rubber soccer , dia is 20.4 cm , packing 50 pcs ... carton , carton is 50*29*33 = 0.048 CBMSize 5 rubber soccer , dia is 21.6 cm , packing 50 pcs ... . First , we change the thick rubber into thin pieces , then use a machine cut into a special shape , the ... , the ball will broken ....... then we stick the rubber skin ourside of the line- bladder , then accross the ...