pressure bubble plug assist vacuum forming

环模塞压成型,plug... ... ) plug-and-ring forming 环模塞压成型 ) pressure bubble-plug assist vacuum forming 气胀模塞压成型 ...

... ) pressure bubble-plug assist vacuum forming 气胀模塞助压真空成型 ) billow plug forming 模塞助压气胀成型(热成型) ...