... Chemical stability excellent anti-aging performance with the best medium resistance in the elastomer PTFE seal gasket:Our company: HUZHOU SONGHUA ... .We can supply PTFE ROD,SHEET,SKIVED,TUBE,PIPE,FILM,etc,together with HDPE,PP,POM,PVC,NYLON ROD AND SHEET ... of medium,the pump valve,the heat exchanger the seal.Characteristics:Chemical stability,with the best medium resistance in the elastomer,excellent ...