我们以“质优价廉、诚信经营、服务为本”的销售理念为您服务，并承诺对本公司产品提供一年免费保修，终身维护、维修。
We guarantee to keep our production in good repair for free in one year, and give a promise of maintenance for life.
一年内免费保修，终身维护，部分产品提供三年内免费保修，终身维护。
We offer a life-long maintenance that is free in the first year. Regarding some of our products, we guarantee three-year free maintenance.
青风还具有多项技术，如节能器、U型防腐蒸发器等，并为用户提供免费终身维护保养。
Qingfeng has patents of energy-saving organ and U type evaporator and will provide lifelong free maintenance for domestic customers.
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