The company supplies HE Yuan, Dongsheng 20 * 3 ,, treads steel grating, trench cover, grating quality assurance, welcome to consult the discussion. My company produces a variety of steel grating, treads, trench cover, grating, materials are (stainless steel, galvanized steel), models (20 * 3.25 * 3.32 * 3..40 * 3 ..20 * * 5..40 5..32 5..25 * * 5 .. etc). Weaving; (welding, bolting). Custom sizes are available upon request. Steel grating material: low carbon steel, stainless steel rails center spacing: There 30,38,50,76,100mm, flat center spacing; there 50,100mm crossbar Size: 6x6mm commonly twisted steel, small size steel. Grating take 5X5mm twisted steel, stainless steel flat bar thickness 5mm diameter used; 5mm; flat width of 25mm, 32mm of I-shaped flat steel. Flat Size: 20 × 3mm common to 75 × 6mm flat shape and other specifications; F is represented as planar (in the tag can be omitted) S is represented as a cross section of the tooth I type "I" In addition, in Specifications added after the letter "S" represent the tooth steel grating, or the letter "I" represents the word steel grating, can also use the word to indicate tooth steel grating. Design and manufacture of steel lattice panels, widely used in urban roads, Square Garden, garden parks, stations, terminals, parking lots, airports, highways, railways, industrial processes, such as various types of industrial buildings.