... ,bounce between 1.20 m and 1.60 m,32 machine stitched panels.Durability: Water absorption less than 10%.Deviation in sphericity ... We are factory specializing in the manufacture and export of machine sewn and hand sewn sports balls for more than 10 ... are manufacturer, we are the source.·We have various machine and hand stitched sports balls:SOCCER BALLS, FOOTBALLS, BASKETBALLS, VOLLEYBALLS, HANDBALLS, ...