The sports cap, injection-molded of HDPE and LDPE, does not require a shrink band and comes with or without a dust cover. The flat cap is injection-molded of HDPE.
Portola Packaging, Inc: Push-pull cap
Portola Packaging (San Jose, CA) has introduced a 28-mm push-pull cap and a 28-mm flat cap for PET bottles. Both closures can be applied to the same bottle finish, which has 2 separate threads to allow for ease of application and low torque removal.
Oct 31, 1999
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