We are the largest manufacturer of Roots blower in China with more than 30 years of history besides Roots type blower/vacuum pump, we also produce regenerative blower(side channel blower), centrifugal blower, pneumatic conveying systems, and cement-producing equipments. With the market share of 46% of Roots blower in China, our turn over last year is USD39, 000,000. Our products also have been exported to thirty of countries including USA, Japan, Australia, Denmark, Austria, Italy, Spain, Germany, Philippines, Singapore, Malaysia, Vietnam, Thailand, India, Bangladesh, Sri Lanka, U.A.E, Iran, Syria, South Africa, Turkey, Ecuador, Israel etc. Roots Blowers/Vacuum Pumps: Capacity: 0.5~1088M3/min. Pressure Rise: 98Kpa (one stage) , 196Kpa for two-stage Vacuum: -80Kpa Material: casting iron, stainless steel etc. Transport medium: air, gas, etc. ZXF Series Regenerative Blower: Capacity:2~20M3/min.Pressure:4-40kpa Material: casting iron, aluminium etc. Centrifugal Blower: 40~400M3/min @ 19.6~68.6 kPa Material: casting iron. Rotary valve: Material: casting iron, stainless steel etc. Type: direct drive, chain drive, open vane, close vane, replaceable vane, abrasion-resistant, etc. Diverter: Material: casting iron, stainless steel etc. Hardware and Tool,Agricultural Machinery,Machinery and Equipment for Construction Materials,General Machinery and Equipment,Casting Piece and Forging Piece