harga tiang listrik besi 6 meter No Further a Mystery
They act transferring the forces via mechanical interlock. This fastening technologies is Employed in steel-to-steel connection, for instance to attach cold-shaped profiles. A screw is inserted in to the base content by using a gasoline actuated fuel gun.Selain itu, angkur baja juga bertugas untuk mendistribusikan beban secara merata guna mengurang