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GL Group Holding (@HoldingGl) / Twittertwitter.com › HoldingGlContact DNV GL Groupwww.dnv.com › DNV Taiwan › Contact DNV GL联系DNV GL集团www.dnv.com › DNV in China › Contact DNVWorking at GL group | Great Place To Work®www.greatplacetowork.com › certified-companyWorking at GL group