Sportsball and manufacturing method thereof

摘要: A sportsball includes a ball cover and bladder. The has valve hole provided thereon consists of plurality panels connected edge to by machine sewing form roundness shape. Each the predetermined shape is made leather or synthetic leather, wherein an outer coating layer, inner lining intermediate layer which integrally formed between strengthened supported layer. bladder disposed inside rubber ball, exterior web adhered on surface stem mounted extended through thereto for air inflation. at least elongating thread evenly wound around ball. Therefore, overlapped with each other entirely embrace supporting resisting stress impact force sportsball.