harga tiang listrik besi 6 meter No Further a Mystery
They act transferring the forces through mechanical interlock. This fastening technological innovation is Utilized in steel-to-steel relationship, As an illustration to attach cold-shaped profiles. A screw is inserted in to the base product by way of a fuel actuated gas gun.Sebelum dimasukkan, pastikan angkur telah dibersihkan dari kotoran dan debu