Sell concealed hinge,Two section closing (two way),C=8,two holes installtion plate 1) Guaranteed to open and close 50,000 times 2) Material: cold-rolled steel3) Antirust protective layer4) Opening angle: 90-110 degrees5) Two section closing(two way)6) With height and side adjustment functions7) Full overlay, half overlay, inset models available8) Optional dowel available9) Diameter of hinge cup: ...