Sell concealed hinge,Hard closing (one way), C=15 Inset ,two holes installtion plate, close end. 1) Guaranteed to open and close 50,000 times 2) Material: cold-rolled steel3) Antirust protective layer4) Opening angle: 90-110 degrees5) Hard closing (One way), click-on, slip resistant6) With height and side adjustment functions7) Full overlay, half overlay, inset models available8) Optional dowel ...