... , small over lay Material :steel Finish: NP, AB,AC Hydraulic hingeName: hydraulic hinge Type: half over lay, full over lay, small over ... 50,000 open and closing test3. untaken apart design hydraulic hinge H series Every series have full-overlay, half overlay and insert three ... : Satin Brass F1: Anodized F1 (ALUMINUM)F2: Anodized F2( ALUMINUM ) Hydraulic Hinge