软质pvc可以用来做成真空吸塑薄膜，用于各类面板表层包装，装饰膜，附胶膜，应用于建材，包装，医药等诸多行业。
Can be used to make soft PVC vacuum film for packaging various types of panel surface, decorative film, with film, used in building materials, packaging, pharmaceutical and many other industries.
单级或双级泵是通过橡胶膜片上下往复运动，引导气流通过泵头，形成真空状态。
One-stage or two-stage pumps feature up and down movement of flexible diaphragm during the mechanical stage which induces a flow of gas through the pump head, generating a vacuum.
单级或双级泵是通过橡胶膜片上下往复运动，引导气流通过泵头，形成真空状态。
One-stage or two-stage pumps feature up and down movement of flexible diaphragm during the mechanical stage which induces a flow of gas through the pump head, generating a vacuum.
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