1.SGS,ISO,for different machines
2.SR,EPDM,SBR,CR,NBR,FPM etc.
3.UV,FR,oil proof,shock proof etc.
4.ODM,OEM as your drawing
1.durable in liquid material,mineral oil,lubricant and other different environment2.materia:SR,NBR,EPDM,NR,SBR3.color:available in any color,according to...