... ,strength-bearing, heat dissipation , explosion-proof , beautiful and durable, easy to clean, convenient installation.Grating Dimension Load ... 40X6, 40X8, 40X10,….90X6….Pitch of Load bearding flat bars(mm)12.5,15, 20, 30, 30.6 ... 8, 35.3, 40, 60, 80……Pitch of cross bars(mm)38.1, 50, 50.8, 70, 75, ... serrated type, serrated I type; cross bar: round type and square twisted type.Types of steel frame lattice ...