How is the after-sales debugging service provided by the central control system?
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The attitude of the on-site commissioning staff at the control room was really awful; they even got angry with the owner
If you haven’t done anything wrong, and he’s getting angry at you for no reason, then you can make things difficult for him when it’s time for payment – after all, even in an egg, a bone can be found.
I guess your service fees aren’t that high either; there were things done incorrectly, and there wasn’t proper communication.
It’s great here; people are very polite and will do their best to meet any requests. Over time, a good relationship is established