For an Oil and Gas project in the Middle East, Global Rope Fittings delivered 4″ and 5″ sockets (102 and 127 mm): Closed Spelter Socket No. 231 & 240 and Open Spelter Socket No. 144 & 150. A number of special modified sockets were also required. These were modified to enable to link 4″ to 5″ sockets.