In 2011, the top 100 taxpayers in Gansu Province were released - Lanzhou Petrochemical Company, China National Petroleum Corporation, topped the list with a tax payment of 10.712 billion yuan. Gansu Tobacco Industry Corporation once again ranked second with a taxation of 4.256 billion yuan. Petrochemical Branch advanced to third place with 4.013 billion yuan. Single-screw Double-die Film Blowing Machine Traction Rotary Film Blowing Machine,Single Screw Die,Heater Extruder Making,Professional Flim Machine Taizhou Langshun Trade Co.,ltd , https://www.longthinmachinery.com