1.SGS,ISO,for different machines 2.SR,EPDM,SBR,CR,NBR,FPM etc. 3.UV,FR,oil proof ... 1987,over 20 years production experience2.Stable rubber material cooperation,make sure good quality rubber material for production3.SGS,ISO certificate,make the ... domestic and foreign equipments,such as rubber mixing millings,plate vulcanization machine,spraying device,type press,cutting machine,air compressor etc.5.Over ...