... and so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory etc. We produce three kinds of ... structure platforms, stair treads, sidewalks, drainages and well covers etc. We can design and manufacture standard steel grating and according ... Pitch (center to center):38, 50, 76, 100, 6mm etc, also be according to client's requirement and 50, 100mm ...