Optical films have extremely high requirements for coating uniformity and surface quality, and the precision of coating machines directly affects product performance. Through technological research and development, Sumino has improved the application level of coating machines in the optical film fie
Today, September 3, 2025, we welcome the 80th anniversary of the victory of the Chinese People's War of Resistance Against Japanese Aggression and the World Anti-Fascist War. On this day of great historical significance, a grand military parade was held in Tiananmen Square, and the whole country was
As the heat wave sweeps across the land, a different kind of bustling scene unfolds inside Sumino Seiko's factory. There is no slowdown in the pace due to the sweltering heat—only the roar of machinery intertwined with the focused figures of workers. Stepping into the factory area, one is immediatel
Recently, Sumino witnessed the crucial moment of packaging and shipping its cast stretching machine equipment. Each cast stretching machine has undergone meticulous handling, making full preparations for its smooth delivery to customers. As an enterprise specializing in the R&D and production of pla