GL is the group of Companies professionalized in the manufacture of the crankshafts over years in Turkey. The primary focus is the manufacture of the crankshafts from 1 cylinder to 12 cylinder for different brands and models. GL`s main exort regions are Europa, Latin America, Middle East and Africa. The main type for crankshafts that we can offer to our clients are: Construction machines Heavy Trucks Tractors GL Innovation and Quality Standarts GL applies it`s own innovative standarts. GL Crankshafts are guaranteed for 12 months and product`s rockwellhardness is 45- 55.