1.Cleanliness: residual impurity inside ≤ 0.194g/㎡.
2.Clutch hose expansion rate: not less than 1.08mL/m under 6.9Mpa; not less than1.38mL/m under 10.3Mpa.
3.Burst Pressure: not less than 49Mpa for clutch hose; Not less than 110Mpa for Clutch Pipe.
4.Clutch hose tensile test: not less than 1500N
5.Salt Spray Test: no red rust for pipe joint during 480h salt spray test.
Clutch pipeline includes clutch pipe and clutch hose.
Clutch pipe is consist of double wall welding tube, bolt joint, and pipe clamp. OD of pipe are φ4.76 and φ6,