... 50,000 open-close - Passed 48 hours salt spray test Product details: Type:Furniture hinge, Hydraulic hinge, cabinet hinge, door hingeMaterial: ... .Widening manganese steel spring,can disperse force when the hinge closed. Strengthened spring, thickness 2.5mm instead of ... life time,smaller volumeFull overlay, Half overlay, Insert hinge available: Guide: Accessories: 26mm concealed soft close metal cabinet ...