... , NBR, EPDM, VITON (FKM), HNBR, etc material and pantone code available, hardness from 30 to 95 Shore A ... by mould vulcanization, ID from 0.5mm to 1000mm and C/S from 0.5mm to 20mm by mould ... AS, JIS, BS,R,GB and customize size available;4, in house tool making and free of tooling charge for standard ... rubber ring, the mould line can be 45° and 180°5,RoHs/Reach certificate,6, strict material traceability ...