Mainly technical parameter: 1. Material: polypropylene(pp) polyester (pet) nylon( pa6) 2. Spin range: 50d-150d 150d-300d 300d-900d 900d-1200d 3. Spin position: 1 position 4. Spin ends: 2ends or 4 ends 5. Spin speed: 2000-3200m/min 6. A grade ratio: 95%