The besi hitam Diaries
As shown while in the figure, tightening the bolt results in a wedge remaining pushed up towards a sleeve, which expands it and will cause it to compress from the material it is actually becoming fixed to.Selain itu, angkur baja juga bertugas untuk mendistribusikan beban secara merata guna mengurangi tekanan pada titik-titik tertentu. Ini dapat men