... ,12 or as required4,Nylon wound5,official size&weight6,Bladder:rubber or butyl7,Standard:EN71,ASTM standardsWe professionally manufacture all sorts ... and types in order to reciprocate our clientsNuoou Sport Goods Co.,Ltd is located in the world famous commodity city-Yiwu ,China ... ball.Our material is tpu leather, pu leather,pvc leather,rubber and so on.Our factory covers more than 4000 square ...