THE BEST SIDE OF PLAT BERLUBANG

As revealed in the determine, tightening the bolt ends in a wedge being driven up in opposition to a sleeve, which expands it and will cause it to compress in opposition to the fabric it truly is staying fixed to.Angkur dengan cara kerja friction akan menciptakan gaya gesek antara media aplikasi dengan angkur yang dipasang. Ketika angkur dikencangk