Amendment 1 - Electrical apparatus for explosive gas atmospheres - Part 1: Construction and test of flameproof enclosures of electrical apparatus— 6 стр.
Electrical apparatus for explosive gas atmospheres - Part 1: Construction and verification test of flameproof enclosures of electrical apparatus— 99 стр.
Electrical apparatus for explosive gas atmospheres - Part 1: Construction and verification test of flameproof enclosures of electrical apparatus— 99 стр.
