For example, connecting a steel pipe to a copper pipe or to a copper electrical grounding system results in corrosion of the steel.

例如，把钢管和铜管相连或钢管和铜的接地系统相连就会导致钢的腐蚀。

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The invention relates to the technical field of the manufacturing of the pipelines of an air conditioning system and particularly discloses a method for expanding a copper pipe.

本发明涉及空调系统管路制造技术领域，且特别公开了一种铜管的胀管方法。

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Dedicate a space to your lip products with this cute copper pipe solution.

这种可爱的小铜管正好可以收纳你的唇膏。

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In short, almost anywhere copper wire is used in close quarters or for fine quality--there is a promising opportunity for the light pipe.

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