Th. Steinweg Nachf piano was loved and highly praised by many famous pianists and artists hundreds of years ago. Th Steinweg Nachf. The original intention of the piano is to pay tribute to Friedrich Grotrian, Henry Steinweg, Theodor Steinweg, and the fourth grotrian of heirs, Evan Grotrian-Steinweg, etc. from 1830 to 1980 The great people are committed to the idea of making piano based on quality. The piano manufacturing continues the previous idea of making piano. It uses the exquisite technology of making piano in Europe and the United States, high-quality raw materials, and new patented technology to create a piano suitable for customers with different needs with high cost performance. The piano made since its establishment has been widely praised by all walks of life.