UL SUBJECT 119-2005《无水氨和可燃气体用接管、配件和连接器调查大纲.发布编号:1》
OUTLINE OF INVESTIGATION FOR ADAPTERS, FITTINGS AND COUPLINGS FOR ANHYDROUS AMMONIA AND FUEL GASES Issue Number 1
OUTLINE OF INVESTIGATION FOR ADAPTERS, FITTINGS AND COUPLINGS FOR ANHYDROUS AMMONIA AND FUEL GASES Issue Number 1