... , metallurgy, pertraleum, railway, ocean survey, mining,ship building etc.. The FRP profiles produced by our company take UPR(unsaturated polyester resin ... shape continuously after curing molding. At present,our company's FRP pultruded profiles include rectangular tubes,round tubes,rod profiles, channel ... to low temperature;(4) Longevity of service, non-maintaining. Best insulator rod by pultrusion