... Our products pass CE and ISO 2. have a good price and quality Product Description1) Type: butt welded and seamless pipe fitting2) Size ... , 321, 321H, 310S, 347H)6) Our products are corrosion and high-temperature resistant7) Applications range: for use in the petroleum ... power, papermaking, chemical, medical equipment, aviation, boiler heat exchanger, and other fieldsPacking: As per customers' requests