1.Rubber Drain Valve:NR,EPDM,NBR,SBR,BR,CR etc 2.Usage:Home appliance for control water in and out 3.Certificate: ... ISO 9001 RoHS Rubber Drain Valve can supply virtually any ... ,materials,inspection procedures,traceability, packaging, labeling and any other parameters. Rubber Parts / Rubber Drain Valve the Color of rubber products:Any ...