Danish steel used in Scottish referendum date sign However, Tom Greatrex, the Labour MP for Rutherglen and Hamilton West, said the SNP could have sourced Scottish-made steel as the simple sign did not require metal of the same quality. Mr Greatrex, whose constituency includes the Clydesbridge Steel works, said: "For this historic event, they have not even bothered to buy steel from Scotland. This speaks volumes for their commitment to the Scottish steel industry. Peter Breslin, Steel Engineering's managing director, said that the wind turbines his company produces have a diameter of 6m (19ft) and require steel plate that is 18m (59ft) long and weighs up to 30 tons. "There are currently no steel manufacturers in Scotland that can produce plates that weigh any more than 14 tons, which means we have had to buy in outside steel from Denmark," he said. This is evidence that more investment is required in Scottish steel mills and production to ensure they are capable of producing the materials necessary for renewable projects in Scotland. It emerged in September that Scottish steel will now be used in the new Forth road bridge after a huge political row over the decision to award three key contracts to companies in China, Poland and Spain. Ms Sturgeon had said the apprentices at the Renfrewshire-based firm had an "integral role" in publicising the referendum date. SNP ministers" "utmost priority" after separation would be to help young people into similar jobs, she added.