China Professional Polyester Manufacturer
POY:Polyester silk preliminary orientation, full name: PRE - ORIENTED YARN or PARTIALLY ORIENTED YARN. Receives the orientation degree of high-speed spinning in orientation between the wire and tensil
POY:Polyester silk preliminary orientation, full name: PRE - ORIENTED YARN or PARTIALLY ORIENTED YARN. Receives the orientation degree of high-speed spinning in orientation between the wire and tensil