1. Cleanliness：residual impurity ≤ 0.06mg/cm2. Size of residual impurity: fiber ＜（1200X90）um，metal＜315um.
2、Burst Pressure：not less than 3MPa。
3、Leakage Test：Under 1.2 MPa，keep 60S no leakage. 
4、Position Replacement Force for bracket and bushing to tube＞50N。
 5、Salt Spary Test：No corrosion  for basic body during 144h.
 

Transmission Pipe is consist of oil pump joints, metal hoses, AEM hoses, clamps, washers, metal brackets. The steel tube connects the pump joint by brazing welding, and metal tube connects the hose by clamps.