... ,310S,S31803,904L Features:1) Type: Butt welded and seamless pipe fitting. 2) Size: We can also produce other specifications according to ... products are corrosion and high-temperature resistant. 7) Applications range: For use in the petroleum, smelting, foodstuff, power, papermaking, chemical, medical ... heat exchanger, and other fields.Packing: as per customers' requests . pipe fitting