floor spring, floor hinge, spring closer, door closer GEZE 58 type 500,000 times open/close tests. support door weight100kg. floor spring,floor hinge, spring closer, door closer, ground hinge,ground spingcan match MAB, DORMA & NEW STAR pivot.iron body+SS304 cover, cover can be PSS&SSS.very popular design in South America market.very good spring&oil.500,000 starting times guaranty.suitable for double swing door Width of 800 X 1100mm and door weight of 100kg.The door can be opened to Max.105 degreees and can be fixed at 90 degree, can be used for Left&Right door.OEM is welcome.