GKN Group (GKN) is currently the second largest engineering technology-based manufacturer in the United Kingdom, founded in 1759, with a history of 256 years; in 1859, has become the world's largest steel company; in 1890 became a joint-stock company; during the First Station, the main production of tanks, ships; during World War II, the main production of aircraft, cars; nowadays, the company has become the largest steel company in the world. Production of aircraft, automobiles; today, in the field of automotive transmission systems, independent aircraft structural parts, aerospace composite material components, powder metallurgy parts, new alloy powder and metal catalytic converters for automobiles anti-drainage filters, etc. are ranked first in the world.