Investigated items are identified as standard pipes, in the nominal size range from 12.7 mm to 168.3 mm in outside diameter.The investigation has been made following a complaint filed by Novamerican Steel Inc in Montreal, Quebec. The firm alleges that as a result of price undercutting from those four countries, Canadian industry faces price suppression, and lost sales.The CBSA and the Canadian International Trade Tribunal (CITT) involve in the investigation, with the CITT beginning preliminary inquiry to determine whether the imports are harming Canadian producers. CITT will issue decision on September 18 while the CBSA will give its preliminary decision one month later.Currently, Canada is applying 101 special import measures, covering a wide variety of industrial and consumer products, from steel products to refined sugar. Last year, the steel industry employed more than 23,000 Canadians, and contributed CAD4.2 billion to the economy.