Georg Fischer launches rival bid for Finland's Uponor
OSLO, June 12 (Reuters) - Swiss industrial group Georg Fischer GF.S said on Monday it had launched a rival cash bid for Finnish plumbing and heating systems maker Uponor UPONOR.HE , offering a premium of 12% compared to a bid by Belgium's Aliaxis BE0941243520.BR . (Reporting by Terje Solsvik; Editing by Jacqueline Wong) ((terje.solsvik@thomsonreuters.com; +47 918 666 70))