.................................................. .................................................. .................................................. .................................................. .................................................. .................................................. .................................................. .................................................. ....................................... undefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefinedundefined glass grating a length of 1007mm × width 3007mm × thickness 40 mm, squares of 40mm × 40mm; 2, the width length of 1007mm × 3007mm × thickness 25 mm, squares of 40mm × 40mm; 3, the length of the width of 3007mm × 1007mm × thickness 25 mm, squares of 25mm × 100mm ; 4, the length of 1220mm × 3660mm × width thickness of 38mm, the box is 38mm × 38mm; 5, the length of the width of 3660mm × 1220mm × thickness 50 mm, squares of 50mm × 50mm; electrolysis plant grill plate glass smelters, power plants chemical processing plants, electroplating plants, battery factory, machinery plant pickling workshops, laboratories, printing and dyeing, salt and so have a lot of trench cover. Power generation, electroplating, sewage, pharmaceuticals, steel, batteries, circuit boards, marine operations and other occasions, used as a cover ditches, platforms, walkways, ladders and so on.