... 20.6Application1) Outdoor activities: tent Pole, kite Rod, arrow shaft, ski pole, fishing rod, golf shaft, sail batten, hockey stick, ... slide guides, boat, kayak2) Tool: umbrella shaft, umbrella rod, curtain rod, fence post, rail, handrail, frame for case and bags ... structures, scaffold, portable work platforms, cooling tower, luggage rack, window/door frame, sign post, bridge structure, bus bar ...