Associated Tube U.S.A (ATU) located in Elizabethtown, Kentucky, U.S.A., is a leading manufacturer of laser welded stainless steel tubing. ATU manufactures product meeting rigorous standards for sanitary, food, beverage, dairy, pharmaceutical and semiconductor applications as well as automotive, power generation and petro-chemical industries. ATU is accredited to ISO 9001: 2000 and 3A Sanitary Standards.