... 3,NBR,VITON,KFM,SILICON,EPDM. 4,make O-rings by customer`s drawing o ring seal kit1. Material: NBR, EPDM, MVQ(Silicon rubber), VITON ... .etc2.We also make O-rings by customer`s drawings or ... to 10mm temperature-resistant -45C to 270 C Tolerance +/-0.01 mm to +/-3.05 shippment FOB SHANGHAI/NINGBO or International ...