When the water heater covered by this warranty is used to supply hot water for heating systems, the system(s) must contain only new equipment, including new water piping (non-ferrous).

 
  • 如果本质量保证所使用的热水器用于供暖系统的热水供应,则这个系统必须只包含新设备,包括新的水管(有色金属)。
今日热词
目录 附录 查词历史