Letter 20 April 2011 - ClassNK · IA CS Recommendation No. 53-2 IMO MSC/Circ. 1312, MSC/Circ.670...
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Letter 20 April 2011 - ClassNK · IA CS Recommendation No. 53-2 IMO MSC/Circ. 1312, MSC/Circ.670 and MSC/Circ. 798 Fixed foam extinguishing systems should be inspected every two years