... 3.partner:FLSMIDTH &Co. A/S 4.DN25mm~DN5000mm Flexible coupling,flexible pipe joint,pipe coupling: 1:Basic characteristic: The ... 12",DN15-DN500MaterialDuctile ironFinishPaint, Epoxy or Galvanization ApprovalFM/ULUsage1) Automatic sprinkler system for fire protection on commercial, civil and ... can supply 5:applicable gigure: 6:certificates obtained: Flexible coupling,flexible pipe joint,pipe coupling