... ,White 3.competitive price 4.OEM is welcome Rubber o ring1.Materials advice: rubber (EPDM, also NBR, SBR, CR, NR, etc),as ... .4.According to your specification,drawing or samples,welcome any shape.5.Rapid development line, from drawing, new tool designs to ... PP bag inside, strength carton outside, or as your request. Rubber o ring KSH0706