🎉Congrats! #CNPC's first self-developed polystyrene unit has been successfully commissioned and put into operation at PetroChina Guangxi Petrochemical Company, marking a major milestone in advanced chemical materials. 🧩Polystyrene is widely used in everyday plastic products, from packaging foam and takeaway containers to coffee cup lids and toy bricks. With this achievement, more daily essentials will soon be made with domestically produced materials. #CNPCExcellence #CNPCproject | CNPC