TIANHUA INSTITUTE OF CHEMICAL MACHINERY & AUTOMATION Co.,LTD Located in Lanzhou,P.R.China. Original Lanzhou LANTAI Plastics Machinery Co.,LTD. was organized by rubber & plastics machinery of TIANHUA. TIANHUA has built the Research Center of Polymer Compounding and Extruding of Gansu Province in Lanzhou, and built the largest Manufacture Base of Twin-screw in Nanjing. 60 Years History Research Techniques Crystallize The Birthplace of Co-rotating Twin-screw Extruder in ChinaNational Basement of Twin-screw Extruding Technical Researches and Human Resources Manufacture Basement of Modern Twin-screw Extruder Honored as National New Products and National Key New Products The R&D Supporter of Twin-screw Extruder by Ministry of Science and Technology of China Undertake the National Major Equipment Developing Projects Undertake the National Torch Projects Undertake the Research Institutes R&D Fund Projects of Ministry of Science and Technology of China