Special Stainless Steel Pipe, alloy and seamless and EFW thick wall pipe Special Stainless Steel Pipe, alloy and seamless and EFW thick wall ... to your requirements2) Our products are corrosion and high-temperature resistant3) The main grades are 304, 304L, 316, ... ASTM A269, ASTM A5115) Applications range: for use in the petroleum, smelting, foodstuff, power, paper-making, chemical, medical ...