Technical Date of Fiberglass Duct Rodder Specification Rod Diameter (mm) Φ 4.5-Φ 16 Rod Length (m) 30m~500m Frame Spec. (mm) 1300x450x1330,1200x420x1220,980x350x1000,680x240x700, 420x180x400,etc. Material: Fiber glass rod inner, Extruded by fiber glass and high strength resin at high temperature Fiber glass rod outer, High Density polyethylene coating Metal Frame: Steel with high-temperature sprayed plastic or hot dip galvanized Physical Property Fiber glass content:75-80% Density > 1.9gr/cm3 Working environment-40° C to +80° C Minimum Pulling strength 4000N +/-5% Consistency of rod 137gr/m Flexural Modulus > 46.500Mpa Elongation at break 2.5-3% Min Bending Radius 388mm