- E V A L A G, P.O.B. 349 CH 2022 BEVAIX (Switzerland) Manufacturing and exporting special metal powder welding equipment of Swiss Origin. Manufacturers and Exporters of special metal powder welding equipment of Swiss Origin. Founded in 1977 under EVEMET and changed to EVALAG in 1988 (share holder company). Since 1989 also active as exporters of Swiss strengweld PE-electroweld couplers for ...www.evalag.ch