harga tiang listrik besi 6 meter No Further a Mystery
They act transferring the forces through mechanical interlock. This fastening technology is Employed in steel-to-steel connection, For example to attach cold-fashioned profiles. A screw is inserted to the base materials by way of a fuel actuated gas gun.Pelaksanaan pemasangan meruakan faktor penentu kuat atau tidaknya angkur sebagai jangkar/pengika