One Steel has been producing Seamless Tubes & Pipe, including Stainless, Carbo, & Copper-Copper Alloy Tubes since 2009 Which required the highest quality products for Desalination , Shipbuilding , Off-shore, and various Heat Exchanger Tubes - In order to produce reliable Tubes , We had been operating the cold Pilger Mill Machine and mordernized facilities to meet worldwide recognized code & standards such as ASTM, ASME, DIN, BS, JIS, EEMUA Etc.