In the fast-paced world of automotive manufacturing and after-sales service, precision and speed are everything. For Great Wall Motor (GWM) —one of China’s largest SUV and pickup truck manufacturers, renowned for brands like Haval, Ora, Tank, and Poer —the solution to managing complex spare parts logistics and technical documentation lies in its EPC (Electronic Parts Catalog) . What is GWM EPC? The GWM EPC is a digital database (software or web-based platform) that provides detailed, interactive diagrams and part numbers for every component of a GWM vehicle. It serves as a bridge between the physical vehicle and the supply chain, allowing users to identify, locate, and order the correct replacement parts.