Insinööritoimisto Virpiö OyA ROCK ENGINEERING AND STRUCTURAL DESIGN FIRMInsinööritoimisto Virpiö Oy is a civil and structural engineering firm specializing in the planning and design of underground and industrial construction. The company is based in Helsinki, Finland and founded in 1989. MAIN FIELDSRock caverns, underground shelters, tunnels and mines |
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