23 Year Industrial Explosion-Proof Manufacturer

+86-15957194752 aurorachen@shenhai-ex.com


Technical Specifications

Coal Safety Certificate Inspection Every Few Years

As per available information, the duration is five years.

coal mine electrical equipment-1
Only products that have secured a coal safety certification certificate and a third-party test report are eligible to bear the coal safety (MA) mark. Both the coal safety (MA) mark and the third-party test report are valid for a period of five years. Once this period elapses, it is necessary to undergo the certification process anew.



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