1.SGS,ISO,for different machines 2.SR,EPDM,SBR,CR,NBR,FPM etc. 3.UV, ... ,SGSwe are looking forware for your visit to our factory. Rubber seal/gasketMaterialEPDM,NBR,SR,SBR,NR,CRFeatureEcofriendly,UV,FR,water/oil ... time4.Over 138 sets domestic and foreign equipments,such as rubber mixing millings,plate vulcanization machine,spraying device,type press,cutting ...