rubber colorful o ring silicone ShoreA50,60,70,80,90 black,white ... TZW,W270,UL AS568,P.G.et Itemrubber colorful o ring siliconeDescriptionMaterial: siliconeShoreA50,60,70,80,90black,white,red,green ... ,NP requirement.NBR,EPDM,FKM,ACM,IIR,Silicon rubber etc. are available.Material usage is based on the final ... 46*34*34 cmNot-standard packing: follow customers' requirement rubber colorful o ring sealing