The Hongyu Glass Fiber Products Factory of Zhalantun City, Inner Mongolia, located in the Zhalantun industrial park at the southern foot of the Greater Khingan Range, covers an area of 12,000 square meters, including 5,000 square meters of factory buildings. The company has fixed assets of RMB 4 million and is a specialized producer of various glass fiber products, sewage treatment systems, and Type 191 manhole cover molds. The various series of products manufactured by the company have obtained the Level 2 Environmental Pollution Control Qualification Certificate of Inner Mongolia Autonomous Region and inspection reports for all products.