high density fiberglass insulation: 1.Durable 2.High Strength, Tenacity, and Modulus 3.High Corrosion Resistance 4.low cost high density epoxy fiberglass ... circle, are welcome.Features:1. Low Density: 67%~74% of aluminum2. High Strength, Tenacity, and Modulus3. Chemical Stability4 ... fishing rod, golf shaft, sail batten, hockey stick, kick board, skate boards, paddle shafts, bows and arrows, crossbows, ...