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**ZYBW...B Dry Running Vacuum and Pressure Combined Pump** The ZYBW...B type vacuum pump is de.......

**Product Details:** - **Model No.:** BY-4420 - **Needle Number:** Double Needles - **Stit.......

**Product Specifications:** - **Model No.:** 4420 - **Needle Number:** Double Needles - **.......

Here is the rewritten and improved English version of your content, with added details to make .......