Shenhai Explosion-Proof
He rerekee te whakaputanga me te whanuitanga o nga tiwhikete pahū-pahū me te waro.
Mo te whakaputanga, Ko te tiwhikete pahūtanga ka tukuna tika e te National Electrical Product Quality Supervision and Inspection Centre, etahi atu mana whai mana ranei. He rereke, the coal safety certificate is exclusively issued after inspection by the National Safety Mark Center, marking a substantial distinction.
Regarding the scope, the explosion-proof certificate is designed for environments with pahū hazardous gases and is predominantly used in Class II locations. He rereke, the coal safety certificate is strictly for use in Class I environments, where gaseous explosive hazards like mewaro kei te nuinga.