| 摘要 |
To provide a multiple coat metal pipe and its fabrication method having excellent corrosion resistance without deteriorating chipping resistance or splashing resistance, capable of being fabricated easily and capable of simply carrying out peel off operation owing to a weak peel off strength wherein corrosion resistance of an end working portion is not deteriorated, there is provided a multiple coat metal pipe which is a metal pipe constituted by multiplexing and coating a first layer including a resin having an adhesive force in respect of a surface treatment layer formed on an outer peripheral face of the metal pipe and capable of being extruded and a second layer provided on an outer peripheral face of the first layer, having a chipping resistance and capable of being extruded, wherein a peel off strength between the first layer and the second layer is 75 g/cm or less and further, there is provided a method of fabricating a multiple coat metal pipe, wherein a first layer including a resin having an adhesive force is extruded on a surface treatment layer provided on an outer peripheral face of a metal pipe and a second layer comprising a resin having a chipping resistance is extruded on an outer peripheral face of the first layer and the both resin layers are brought into contact with each other and are multiplexed with each other substantially in a non-adhesive state.
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