Yuav txiav txim plaub ntug tus Authenticity ntawm tus plahaum, Overhaul thiab Maintenance Tsim nyog daim ntawv pov thawj rau Explosion-Proof Hluav Taws Xob Khoom

Cov txuj ci tsim nyog rau cov plahaum, nab, thiab tu cov khoom tawg-proof fais fab yog txwv kom muab zais rau hauv ob hom: neeg daim ntawv pov thawj thiab ib tug neeg daim ntawv pov thawj.

Daim ntawv pov thawj muag khoom yuav tsum muaj ntawv pov thawj ua pov thawj. This number enables the verification of the certificate’s legitimacy by checking with the issuing authority.