AC power plugs and sockets In addition to Germany, it is used in Albania, Austria, Belarus, Bosnia and Herzegovina, Bulgaria, Chile, Croatia, Denmark, Estonia, Finland, Georgia, Greece, Hungary, Iceland, Indonesia, Iran, Italy (standard CEI 23-50), Kazakhstan, Latvia, Lithuania, Luxembourg, Republic of Macedonia, Republic of Moldova, the Netherlands, Norway, Pakistan, Portugal, Romania, Russia, Serbia, Slovenia, South Korea, Spain, Sweden, Turkey, Ukraine, and Uruguay. "Schuko" is an abbreviation for the German word "Schutzkontakt", which means "Protective contact" - in this case "protective" refers to the earth. Some countries, including South Korea, Portugal, Finland, Denmark, Norway and Sweden, require child-proof socket shutters; the German DIN 49440-1:2006-01 standard does
Forestry in Estonia paper industry remains relatively small. Round wood is exported mainly to Finland and Sweden, while Estonian sawmills also import logs, mainly from Latvia and Russia. Wood pellets is another product which is almost exclusively exported. Wood makes out the second largest source of domestic fuels in Estonia (the largest being oil shale). Wood is commonly used both on an industrial scale by large boilers fed by wood waste and chips, and in the residential sector via traditional firewood-burning stoves. Since 2008, there are also two combined heat and power plants, in Tallinn and Tartu respectively. 40% of the forests of