美国采购需求：生活热水器、空气能热泵、泳池加热器、直流变频热泵、EVI热泵、泳池加热器

I would like to request confirmation that all wiring and connections in the products are properly secured. Ensuring the integrity of these components is crucial for product performance and safety. Additionally, please provide details on the quality control measures you have in place to verify that all connections meet the required standards. It's important for us to maintain high reliability and durability in our offerings, so your cooperation in this matter is greatly appreciated.