... : rubber (EPDM, also NBR, SBR, CR, NR, etc),as your request,Environmental Friendly, to give you optimized material performance in ... to ISO9001-2008, SGS, FDA standards.4.According to your specification,drawing or samples,welcome any shape.5.Rapid development line, from ... , logo and NO. as your request.10.Package:regularly clean PP bag inside, strength carton outside, or as your request. Rubber o ring ...