23 Year Industrial Explosion-Proof Manufacturer

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Performance Characteristics

How Long Is The Explosion-Proof Certificate Valid

In the domestic market, explosion-proof certificates typically hold a validity of 5 years. The expiration date is clearly marked on each certificate for holders to see.

For example, the period of validity for an explosion-proof certificate might span from November 4, 2016, to November 4, 2021 — exactly five years.



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