glassfiber crossarm (new material), save energy, light weight, high strength. Features: glassfiber crossarmThe glassfiber coposite materials priduct(FRP)crossarm developed by our company,had applied the national patent(Patent No.03212387.6)This product has save energy,light weight,high strength,and good quality on impact,dielectric,corrosion retardancy,heat retardancy and so on properties.Those ...