Heavy Duty Galvanized Steel Grid Trench Drain Grating Cover for Construction
Pressure Welded bar grating is forge-welded, a system in which NJMM was a pioneer. In this process the bearing bars and cross rods are permanently forged together by heat and pressure into a single unit construction, resulting in greater strength per pound than mechanical assembly methods.
The twisted cross rods provide a non-slip walking surface. For applications where extremely slippery conditions prevail, Serrated bar grating offers a superior grip surface to the load bearing bars.
Material: ASTM A36, S235JR,S275JR,S355JR,Q235,Q355
Fabrication Standard: ASSI NAAMM MBG531-00, AS1657, EN ISO 1433
Galvanizing: ASTM A123M
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