The use case of Shenzhen Yantian Port Wharf, the design of the special steel grating for the wharf should avoid the danger caused by falling objects. Notch for clearance clearance of galvanized steel grating. The clearance gap of the working platform or channel steel grating cannot allow the sphere with a diameter of 35mm to fall through; the clearance gap of the platform and channel steel grating above the place where there are people should not allow the sphere with a diameter of 20mm to pass through the drop, otherwise other appropriate facilities should be used guarantee the same level of safety. The steel grating of the working platform and the channel shall be designed to avoid the danger of pedestrians tripping, the steel grating shall be flat, and the height between adjacent steel gratings, steel gratings and components shall not exceed 4mm.
https://www.topsteelgrating.com/
