... rings 1.Material:NBR, Silicon,EPDM, etc 2.ISO 9001:2000 3.OEM and ODM welcome HOT !! High ... for your chooseLed Color:white,red,blue,green,colorfulHs.code Weight: 2gMOQ:100000pcs/orderUsage:Medical ,Industrial machine ... proof of this silicone o ring, as requested!2.Durable and tensile ,heat-resisting and cold-resisting(- ... : T/T,L/C,WESTERN UNION ,PAYPALPacking: 2.2000pcs/opp bag,carton size: 34*35*36 ...