... as chemical, metallurgy, ship building etc Well Insulated Fiberglass Rod The fiberglass rod is wildly used as best material for anti-corrosion ... company's FRP pultruded profiles include rectangular tubes,round tubes,rod profiles, channel profiles,I profiles,windows profiles,angle profiles ... Good re sistance to low temperature;(4) Longevity of service, non-maintaining. Best insulator rod by pultrusion