Non-metal building materials, namely, roofing channels, angle brackets, drain pipes, drain bases, drain grates, building triangular supports and posts; Rubber bearings for seismic isolation of buildings; Nonmetal door parts for buildings, namely, adjusters for adjusting the height of a door, floor boards, columns, beams, paneling boards, sills, sleepers, backings for ceilings or walls, stiles, rails and ceiling boards