Beijing Huafu Engineering Co., Ltd. possesses the "Vertical Reactor Slurry Polymerization and Horizontal Reactor Gas Phase Polymerization Combined Process Technology" for polypropylene (referred to as SPG/ZHG). After more than 10 years of experience in domestic and international projects, the company has undertaken the process package design and engineering design for over thirty sets of polypropylene units, with a total annual production capacity nearing 4.1 million tons. All units have been operating stably. During this period, the company has continuously improved, optimized, and scaled up this polypropylene process technology, accumulating a wealth of engineering design experience and forming the following multiple patent technologies.