The German Teana floor heating pipe is imported from Germany. When my family was fashionable, I also doubted whether pipes were really imported. Finally, they provided the certificate of origin and customs declaration documents of the pipes, which really proved that the German Teana floor heating pipes were imported pipes! I'll provide you with the customs declaration form later. It was taken by a mobile phone. It may not be clear, please forgive me! I hope to adopt my answer! !