GB 20800.1-2006

General rules of explosion-protect techniques of reciprocating internal combustion engines for explosive atmospheres - Part 1: Group Ⅱengines for use in flammable gas and vapor atmospheres

爆炸性环境用往复式内燃机防爆技术通则 第1部分：可燃性气体和蒸汽环境用 Ⅱ类内燃机