NF M87-252-1*NF EN ISO 13624-1:2010 Petroleum and natural gas industries - Drilling and production equipment - Part 1 : design and operation of marine drilling riser equipement
2010NF M87-252-1*NF EN ISO 13624-1:2010 Petroleum and natural gas industries - Drilling and production equipment - Part 1 : design and operation of marine drilling riser equipement