Load flat steel and bars with certain distances arranged in high-pressure are welded by resistance welding machine into original plate, then cutting, incision, opening and edging the original plate to form Gully Cover. A variety of models to choose to suit different load and span requirements.
1. Flat steel: material is Q235A or stainless steel, there are Ordinary planar, non-slip gear type and section I type. Common specifications are 20mm×5mm、25mm×5mm、25mm×3mm、32mm×5mm、32mm×5mm、40mm×5mm、40mm×3mm、50mm×5mm、65mm×5mm、75mm×6mm、100mm×8mm、100mm×10mm and so on.
2. Bar: the round, twisted square steel, square or hexagonal steel made of Q235A, or 304 stainless steel. Twisted square steel is made by the rod drawing and twisting, the common specifications are 5mm×5mm, 6mm×6mm, 8mm×8mm and so on.
Light: Car, pedestrians on campus, residential parks, park, underground parking and kitchen.
Heavy: Below 20 tons car-free plant, the general road, trunk road, parking and streets.
Super Heavy: Trunk roads of Heavy-duty trailer, container cranes and aircraft; Large parking lot, mines, docks and airports.
Application：Widely used in municipal roads, garden facilities, residential quarters, schools, sports management and other different places.
Surface treatment：Cold galvanized, hot-dip galvanizing, paint, plastic coated, etc.
（1）According to the different materials, gully cover is divided into hot-dip zinc gully cover and stainless steel gully cover.
（2）According to the different shape, gully cover can be divided into common type gully cover, u-type gully cover, pipe cover and anti-thief gully cover.
Common type gully cover is steel grating.
Pipe trench cover is the steel grating side package with steel pipe.
U-type gully cover is the steel grating side package with angle bar.
Anti-thief gully cover, the angle frame is cast in reinforced concrete, and then put steel grating into the angle frame.
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