冷气机要定期维修保养，隔尘网要经常清洗。

Keep air-conditioners well maintained and wash air filters frequently.

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我们可以和客户签订定期的维修保养合同，如有需要，也提供全面的技术和工程的帮助。

We can sign the regular maintenance contracts with customers, if necessary, also provide a full range of technical and engineering assistance.

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定期给热风幕器做维修保养，让热风幕器运行在正常的工况下。可以保证热风幕器的使用期限。

Regular hot air curtain device to do maintenance, so that the hot air curtain device operating under normal conditions. Can guarantee the use period of the hot air curtain.

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