... tube for blow molding 2. used in the industries of tennis rackets, bicycle, baseball bat, hockey stick, etc. Nylon film tube ... 60um, 80um)3.excellent tensile strength;4.high thermal stability;5.user-friendly operation;6.good elongation,heat resistance and gas ... molding operations of composites materials.8.such as forming bicycle, tennis racket, badminton racket, baseball bat, hockey stick, mast to ...