Which expert has a photo of the Fisher valve certification?
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Asking on behalf of a colleague.
It’s obvious that the person in charge of purchasing is an expert in this field. If you really purchase valves imported from abroad, they won’t come with certification documents – only labels. If you need proof, you can ask for a certificate of origin and customs declaration forms; these two documents can prove that the items were imported from abroad (it’s also possible to have them manufactured in China and then shipped back through various ports;P). Furthermore, there are only two types of valves produced abroad: those that are qualified and those that are not. Most of those that leave the factory are qualified; in China, the certification system is nothing but a form of self-deception.