Molded rubber ball 1.Certificate: ISO9001:2008 2.Material: NBR, NR, EPDM, metal, etc 3.Different sizes Product NameMolded rubber ballCertificateISO9001:2008Country of OriginChinaAdvantagea ... vegetable oilSizeWe can provide you with many different sizes of rubber ball, according to your drawing or samplesMatetialNBR, NR ,EPDM ,SBR ,SR ...