Core Viewpoint - The successful factory acceptance of the first domestically produced 450,000 tons/year polypropylene blending extrusion granulation unit by Dalian Heavy Industry marks a significant advancement in China's equipment manufacturing capabilities, particularly in the petrochemical sector [1][2]. Group 1: Equipment and Technology - The 450,000 tons/year polypropylene blending extrusion granulation unit has passed all performance tests and meets design requirements, showcasing its advanced layout and quality [1]. - The unit's standard load capacity is 56.5 tons/hour, with a maximum load capacity of 67.5 tons/hour, placing its overall performance among the international advanced ranks [2]. - The project team overcame multiple technical challenges over 14 months, achieving autonomy in key technologies such as high-torque transmission stability and high-temperature, high-pressure melt precision blending [2]. Group 2: Strategic Importance - The Tarim 1.2 million tons/year ethylene project is a demonstration of China National Petroleum's commitment to green low-carbon development and high-value resource utilization [1]. - The successful acceptance of this unit signifies a historic breakthrough in the design, manufacturing, and integration of large-scale blending extrusion granulation equipment in China, transitioning from a "follower" to a "runner" in the industry [2]. - The project supports the national strategy for major equipment autonomy and domestic production, providing a foundation for future large-scale ethylene and polypropylene project construction [2].

Group 1 - The stock price of Dalian Heavy Industry on August 11 closed at 6.48 yuan, down by 0.03 yuan, representing a decline of 0.46% from the previous trading day [1] - The trading volume for the day was 487,060 shares, with a total transaction value of 315 million yuan [1] - Dalian Heavy Industry specializes in heavy machinery manufacturing, focusing on the research, development, manufacturing, and sales of metallurgical machinery, lifting machinery, port machinery, and bulk material handling machinery [1] Group 2 - The company recently developed a polypropylene blending and extrusion granulation unit with an annual capacity of 450,000 tons, which has passed factory acceptance tests [1] - The equipment has a standard load single-machine capacity of 56.5 tons per hour and a maximum load of 67.5 tons per hour, achieving performance levels that meet international advanced standards [1]