fiber glass sheet: 1.Low Density 2.High Strength, Tenacity, and Modulus ... , bows and arrows, crossbows, golf shafts, slide guides, boat, kayak2) Tool: umbrella shaft, umbrella rod, curtain rod, fence post, rail, handrail ... , window/door frame, sign post, bridge structure, bus bar supports, tool handles, bike flags, flag poles, floor gratings, shoe soles, protective ...