Steel grating is made of flat steel in accordance with a certain distance and cross arrangement, the use of gas welding, welding into the middle with a square lattice of steel products.Flat steel is generally cold rolled Q235 flat steel, can also be hot rolled I flat steel, tooth flat steel, inclined flat steel, stainless steel flat steel and other specifications.The bar is generally twisted square steel, square steel, round steel, flat steel, etc.The surface treatment has: hot galvanizing, cold galvanizing, spray model, spray paint, dip anti-rust oil can prevent oxidation rust, (general stainless steel need not above treatment, most stainless steel surface polishing treatment). Advantages: saving materials, reducing investment, simple construction, durable, modern fashion, anti-fouling, reducing wind resistance, simple design, strong corrosion resistance.

1. The shape of bearing bar: Plain type (may be omitted in the symbol of steel grating), Serrated type and 

    I-Shape type
2. Bearing bar pitches can be 12.5, 15, 20, 30, 30.16, 32.5, 34.3, 40, 60, 80mm, of which 30mm & 40mm 

    are recommended.
3. Cross bar pitches can be 40,50,60,65,76,100,101.6,120mm are recommended.
4. Surface treatment: Hot-dip galvanizing, paint or other anti-corrosive coatings are available, of which 

    hot-dip galvanizing is generally recommended.
5. Material: Carbon steel/ stainless steel
6. Tolerance
The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm.
The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not 

surpass the end surfaces of two sides of grating 2mm.

7. Standard:

HEBEI YISHUO is committed to quality manufacturing and excellent customer service on high-tech wire mesh and related metal products. We are located in tiangongying Township, Xinji City, Hebei Province, 2 kilometers away from Anping the hometown of wire mesh. Our factory covering an area of 10,000,000 sqm, we are a production / R & D enterprise. After 30 years of innovation-driven development, we has become China′ S leading manufacturer and exporter of wire mesh&metal products. Our factory has laser cutting equipment, welding equipment, spraying production line, stamping equipment, wire drawing equipment and a series of production processes completed independently. Therefore, we can better control the quality and delivery time, and guarantee to give customers better prices. In addition, we have our own production and R & D department, which can accept different cooperation methods such as processing with supplied materials, processing with supplied samples and OEM ODM production.