ressure locked bar gratings according to sizes and structures:
1, Ordinary steel grating maximum working height of 100mm. Steel grating length is usually less than 2000mm. Ordinary bearer flat grooving, the rail steel molding pressure lock.
2, Steel grating height of not more than 100mm. Steel grating length is usually less than 2000mm. Integral bearing steel and rail steel having the same height as the bearer flat notch depth 1/2.
3, Sun steel grating, grating height is less than 100mm. Bearing