Internally polyolefin coated steel pipe having excellent durability, method for producing the same, and plated steel pipe used for the coated steel pipe
Disclosed is an internally polyolefin coated steel pipe having excellent durability, which is characterized in that the inner surface of a steel pipe, which is internally and externally plated with a zinc plating material containing 0.01-60% by mass of Al, is provided with a polyolefin tube via an a...
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Sprache: | chi ; eng |
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