Shandong Inov Polyurethane Co., Ltd., a nationallevel singlechampion enterprise in the manufacturing sector, specializes in polyurethane raw materials and their derivatives. Its selfdeveloped highspeedrail polyurethane cushion blocks achieved successful exports to Europe in 2025 with robust technology, filling a domestic market gap. At present, Inov’s polyurethane products including highspeedrail cushion blocks are sold to more than 100 countries and regions.