... magnetic coil, electromagnetic coil, H and F grade insulating composite material with polyimide or polyester film, etc. ), airfoil, aero ... these fields demand specially the material with superior quality. We are Yantai Metastar Special Paper Co., Ltd, is the first aramid paper ... except Dupont and Teijin. Its parent company- Yantai Spandex Co., Ltd as the first spandex , metar-aramid, and para-aramid ...