... MOQ 5.ISO9001:2000 approved Detailed introduction NameMolded coal mine nylon rollerSize& ColorVarious for you to choose.MaterialNylon. (other materials also ... products,such as oil seal,o ring,seal ring,rubber roller,gasket,rubber sheet,etc. The material are various for you ... to choose.For example, Nylon, NBR,NR,PTFE,PU,EPDM,Silicone,Viton,etc.It's ...