Specifications:1) Highly precise body processed on the special CNC lathes2) Robust and highly wear-resistant rotor shaft designed with French advanced technology3) Long life and high durability supported by lubricative and low friction rotor chamber4) Perfect self-protection with highly precise relief valve system5) Low noise level achieved by being under 10mg/cm balancing6) High efficiency achieved by below 0.02mg rotor-casting radial clearance7) High output performance achieved by below 0.004mm rotor-casting axial clearance8) Performance higher than JIS (Japan Institute Standard) producing area:China payment:L/C, advance payment supplying capacity:100,000 sets/month