Steel grating is flat and perpendicular to the load by load flat steel rails arranged at a certain latitude and longitude grid spacing, which each intersection is a professional machine welding, riveting or press the lock fixed. After the load flat steel, load bearing, the direction of the longitudinal direction of the steel grating; zonal for rail, connecting role, and its direction is the width direction of the steel grating. Steel grating is not lack of modern industry an economical engineering materials, light weight, air and light, non-slip safety, appearance, convenient and durable, construction and other characteristics, widely used: 1, various ship gangway channel, pump, engine room platform; 2, various bridges, such as the side of the road railway bridge, overpass walkway decking Approach; 3, oil plants, car wash, aerial tower platform; 4, municipal engineering perspective parking, fenced large venues and buildings, road barriers, drainage covers road, ditch cover. Steel grating categories and a variety of forms, can fit different requirements of different customers on different occasions in different environments. Its load flat side surface shape, can be divided into flat type, tooth type and I-type three; Material can be divided into: carbon steel, stainless steel, glass, steel, aluminum, etc; by steel grid plate production process can be divided into different pressure welding steel grating, plug grille plate, welding steel lattice panels;