No, Jiangyin Haida is a well-known R&D and rubber and plastic material manufacturer in China, not from Germany. The series products of EPDM rubber sealing strips developed and produced by the company effectively solve the problem of traditional rubber strips expanding when heated and contracting when cooled, maximize the contact area with doors and windows, and have higher air tightness and water tightness and better sound insulation performance. At the same time, it has excellent cold resistance, heat resistance, drying resistance, moisture resistance and excellent rain, snow and water corrosion resistance.