e kitgot Explosion-proof Certificate use in danger of methane, gas small,light ... can’t opposite. Don’t touch the face of exploder-proof. Tighten the screws after put into battery. It can ... -40°C~+60°CCertificateThe exploder got the MA mark and Explosion-proof Certificate issued by CQST. (CQST is mutual recognition with Norway ... , or not use. FD-200D Coal mning blastig mhines,explosion-proof exploder