... Rubber ball with metal bone 1.Certificate: ISO9001:2008 2.Material: NBR, NR, EPDM, metal, etc 3.Different sizes Product NameRubber ball with metal ... you with many different sizes of rubber ball, according to your drawing or samplesMatetialNBR, NR ,EPDM ,SBR ,SR ... range of valves and pipes, rubber seals, auto rubber parts, industry rubber parts, auto rubber parts, rubber roller used in the wrapping ...