Woosung Automa Co. High Vacuum Rotary Vane Pump Category Pumps Documents 3 manuals available Models W2V10, W2V20, W2V40 Languages English Available manuals Choose the document and version that matches your device. Instruction Manual Year not specified Models W2V10 Languages English View PDF Download Instruction Manual Year not specified Models W2V20 Languages English View PDF Download Instruction Manual Year not specified Models W2V40 Languages English View PDF Download