NF E52-109-2:2015 Lifting and handling - Making and testing of welded joints in lifting and handling equipment - Part 2 : welding quality classes and extent of the non-destructive testing
2015NF E52-109-2:2015 Lifting and handling - Making and testing of welded joints in lifting and handling equipment - Part 2 : welding quality classes and extent of the non-destructive testing