Industrial fabric maker Low & Bonar said second half profit is expected to be materially better than the first half and in line with company expectations.Trading since the interim statement of 19 October has remained at anticipated levels, the group said in Thursday's company statement.It added that sales in all sectors have improved in the second half with marked increases in both the civil engineering and transport sectors.Low & Bonar said its continued focus on cash generation will result in net debt being materially lower than the first half and also below the group's previous expectations.