1.name:coil pipe/fin pipe/extruded pipe 2.making standard:GB/T14296- ... are: Dimensional accuracy, rugged construction, High sturdiness, Corrosion resistance, Suitable hardness, Durability, Abrasion resistance, Resistant to extreme temperature, High operation efficiency. Gele ... X 1.0Φ360.66100.32.6 to 2.86 coil pipe/ fin pipe/extruded pipe