... hypoxia and there is gas, smoke, steam pollution, atmospheric environment; B. -30 ° C ~ +60 ° C, relative humidity 0 ~ 100%, atmospheric pressure 70Kpa ... .cmRHZK-5/3053015003005~650≤1277×30×48RHZK-6/3063018003005~660≤1477×30×48RHZKF-2/302306003005~620≤477×30×48RHZKF-3/303309003005~630≤4 ... -6.8X2/3013.63040803005~6120≤14.577×30×48RHZKF-9/3093027003005~690≤11.577×30×482.2 The use of time is ...