Karenan memiliki ketahanan yang sangat kuat Grating sering digunakan dalam proyek – proyek industri maupun kontruksi bangunan besar.Stress-locked bar grating, or swaged grating, is in which steel rods are forced as a result of and locked in load bars. Riveted bar grating is the place the load bars are riveted for the cross bars. There are broad f