... hinge cup:26,35,40mm depth of hinge cup:9.6,11.3,12.6mm cycle life test:50000 material:carbon ... -rolled steel(as you demand.)Features: Body is made of high quality cold rolled steel Passed 75 pounds load test Passed over ... -close test Passed salt and mist for over 48 hoursFull overlay,half overlay,inset models are available. high quality Hydraulic hinge gemel Middle 261