DSR-V Roots Vacuum Blower 报价：￥800.00 / set Pressure：-1260~-4080 mmAqCertificate：ISO9001 CEApplication：Vacuum metallurgy
Small Roots Blower Price 报价：￥450.00 / set Air Capacity：0.45--2.31m3/minPressure：63.7-98 KpaColor：Blue
