An Unbiased View of merk seng gelombang terbaik
They act transferring the forces by means of mechanical interlock. This fastening technological know-how is Utilized in steel-to-steel relationship, for instance to connect chilly-formed profiles. A screw is inserted into the base content via a gasoline actuated gas gun.Pelatihan: Pekerja harus mendapatkan pelatihan yang memadai tentang penggunaan