... ironFinishPaint, Epoxy or Galvanization ApprovalFM/ULUsage1) Automatic sprinkler system for fire protection on commercial, civil and municipal ... .2) Industrial pipeline system on shipping, mine, oil field, textile, powder plant, etc.3) Pipeline system on subway station, ... supplying,etc2)Industrial pipeline system on shipping ,mine, oil field,textile,powder plant,etc.3)Pipeline system on subway station ...