1. nylon film tube for blow molding 2. used in the industries of tennis rackets, bicycle, baseball bat, hockey stick, etc. ... strength;4.high thermal stability;5.user-friendly operation;6.good elongation,heat resistance and gas-seal property;7 ... operations of composites materials.8.such as forming bicycle, tennis racket, badminton racket, baseball bat, hockey stick, mast to fiberglass compositss. ...