(The picture is the fork handle installation picture)

3H window handle upvc supplier tell you that every fork handle’s fork length can be custom-made, so the length is in ten to several ten mm. The fork’s length which is using depend on the opening fan material. In fact, it depends on the place of the transimission rol installation. Because the fork handle finishs the transimission locked by the transmission rob. The fork handle’s U fork catch the fork nail in the transmission ron, when the handle is transmissing, it needs the fork to make transmission rob translate, so it can finish open and locked job.