Characteristics: Main electric motor adopts Chinese famous brand. Constant power variable plunger pump with Chinese famous brands or imported originally are adopted. Advanced S pipe system with good sealing performance, simple and reliable structure and conveninent replacement of wearable parts. Anti-wearing plate and cutting ring adopt hard alloy with abrasion resistance, impact resistance and long service life. Electrical appliances adopt Schneider electrical parts with sensitive and reliable running and long service life. Master cylinder adopts imported sealing parts with good sealing performance and long service life. Italian Manuli high pressure hoses with high pressure resistance and non-leakage are adopted. Sweden CEJN shock proof pressure gages with impoact resistance and high sensitivity are adopted.