The scope of application of this product:
Apply to all kinds of Auto-oil piping、braking piping、
boost-steering gear piping.
Products functions:
Our company select single/double-wall welding-pipe(bundy tube),
which are all accord with Country YB/T4164-2007 standards
Mechanical functions:
Rm≥290MPa
Rel≥180MPa
A≥25%
ID cleanliness: residuum ≤ 0.16g/ m2
Salt spray test : no rusty on OD in 3000 - 3600 hours
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