?i?u này ch?ng t? tính ?n ??nh c?a t?m sàn grating trong vi?c ch?u ??ng các tác ??ng môi tr??ng kh?c nghi?t.FRP grating is made by combining a matrix of resin and fiberglass. Fiberglass gratings don't corrode like steel gratings which is as a result Employed in corrosive environments to lessen upkeep costs.Nh?ng thanh thép la ???c liên k?t