... ,less cost , better competitive,same buffering function ,fixed base buffer hydraulic hinge N09.N08.N07 series small model,without black plastic base to adjust degreeEvery ... hinge cup: 0.8mmThickness of body and metal plate: 1.2mmMaterial: Cold Rolled SteelFinish: nickel platedSwitch:50,000 times open-closing buffer hinge small model N series ...