Lo awọn okun bugbamu-ẹri, eyi ti o le jẹ ailewu intrinsically, flameproof, tabi ṣiṣe nipasẹ irin conduits tabi bugbamu-ẹri rọ conduits.
Jọwọ tọkasi GB50058-92.
Lo awọn okun bugbamu-ẹri, eyi ti o le jẹ ailewu intrinsically, flameproof, tabi ṣiṣe nipasẹ irin conduits tabi bugbamu-ẹri rọ conduits.
Jọwọ tọkasi GB50058-92.