Fiberglass roving is an elementary material in fiberglass line, and there are many types: SMC roving, filament winding roving, spray up roving, pultrusion roving, extrusion roving, panel roving, GRC roving, thermoset and thermoplastic plastic reinforced roving, gypsum reinforced roving, texturized yarn, fiberglass roving with certain length, fiberglass roving for making  tube, etc