Yantai Zhongrui Chemical Industry Co.,Ltd., as manufacturer of  HCFC-141b used as blowing agent in polyurethane industry.Our factory is located in Laiyang Yantai city Shandong Province,which covers an area of 100,000 square meters with the total investment of  USD75 million and has a great convenience in transportation to Yantai or Qingdao Port.We are the biggest manufacturer of HCFC141b in northern China with the annual production capacity of 20,000 Tons.