... , paddle shafts, bows and arrows, crossbows, golf shafts, slide guides, boat, kayak2) Tool: umbrella shaft, umbrella rod, curtain rod, fence post ... , kart, bodyshell, wind turbine blade5) Pipe: gutters, firewater/ cooling water /gas /drinking water/ waste water pipe6) Building: roofing laminate, flat roof, door surrounds, over ...