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1、Cleanliness：weight of residual impurity inside ≤ 0.06mg/cm2; impurity size：fiber＜（1200X90）um，metal＜315um. 
2、Burst pressure：not less than 3Mpa.
3、Leak Test: 1.2Mpa, keep 60s no leakage.
4、Position dispalcement force for bracket & shoulder to pipe＞50N
 5、Salt Spray Test: No base material corrosion during 144h of metal tube.
 

Transmission pipeline is mainly consist of fuel pump joint, metal tube, AEM hose, clamp, washer and metal bracket. Metal tube connect the pump joint by brazing welding, metal tube connect the hose by clamp.