product – jd vacuum service is a leading manufacturer and supplier of Tri Lobe Roots Blower (Rotary Lobe Compressor) / Exhausters, Twin Lobe Roots Blower, Catalyst Loading / Unloading Systems, Cement Feeding System, Dust Collection System, Gas Boosters (Booster Compressor), Mechanical Vacuum Boosters, Pneumatic Conveying System and Vacuum Pumps and spare parts.