... of types 1) Type: butt welded and seamless pipe fitting2) Size: we can also produce other specifications according to customers' requirements ... , 321, 321H, 310S, 347H)6) Our products are corrosion and high-temperature resistant7) Applications range: for use in the petroleum, smelting ... , chemical, medical equipment, aviation, boiler heat exchanger, and other fields Small Size Elbow