... ROHS directive. Quality certificate: ISO9001:2000 Rubber SealsMaterial: EPDM, NR, NBR, SBR, SILICONE, PTFE, Rubber Components etc. Shape: Square rings, quad rings, back ... , wear ringsHardness: 30SH-90SH.Color: Black, Transparent, Green, Red, Yellow, etc.Specification: Made as per your drawing or samples.Advantage: High ... time: according to the QTYOEM or ODM orders are welcome Rubber Seals