The steel grating is made by welding the twisted 5mm×5mm, 6mm×6mm or 8mm×8mm square steel and several loaded flat steels into a whole at right angles to form an open grid type with good bearing capacity. Structural board.
The flat steel under load is usually 3mm and 5mm thick flat steel, and flat steel with "I" section and toothed flat steel can also be used. The width of the loaded flat steel (that is, the thickness of the grid plate) ranges from 20mm to 75mm. The spacing of flat steel is usually 30mm or 40mm, and can also be 15mm, 25mm, 35.3mm, 60mm, etc.
The spacing of the cross bars is usually 100mm or 50mm, and can also be 30mm, 33mm, 150mm, etc., thus forming steel gratings of different series and specifications.
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