Friction Hinge Four-bar linkage friction hinge, square groove window hinge StyleMaterialWidthThicknessStack HeightSize/inchDescription4bars 5bars 6barsSUS202 SUS301 SUS30412mm 13.5mm 18mm 22mm2.0mm 2.5mm 3.0mm14mm, 15.5mm, 17.5mm8'',10'',12'',14",16",18",20",24"It is suitable for casement windowl,top-suspension window.We can also produce according to customers' requirements.We are willing to ...