Space between bearing bars and horizontal bars for pressure welded grating: Generally the space is decided in three series: A. 30mm B. 40mm C. 60mm Space between horizontal bars: A. 100mm B. 50mm
Types of bonding welded grating: According to the surface there are dentiform grating, flat grating, type I grating and compound grating. According to the surface treatment there are hot DIP galvanized, paint welded and plain bar bonding welded grating.

Specification of bearing bar and horizontal bar:
1. Bearing bar: Q235A or stainless steel. There are three types: Flat, anti-slip dentiform and cut I. Common specifications are 20*5, 25*5, 32*5, 40*5, 40*3, 50*5, 65*5, 75*6, 100*8, 100*10 etc.
2. Horizontal bar: Q235 or stainless steel, round, twisted, square or hexagonal bars. Common specifications for twisted bar are 5*5, 6*6, 8*8 etc.

Usage: Steel bar grating are widely used in industrial areas such as oil and chemical, power plant, water plant, waste water treatment, infrastructure engineering. Served as platform, path, ditch lid, stairs and fence etc.