The height of the beam is 500 mm, upper plate is16mm,down plate is 18mm,

middle plate is 10mm.

Q345B

Electrical system

Founded in 1956, Jinan General Auto Works Plant, the predecessor of China National Heavy Duty Truck Group Co., Ltd (SINOTRUK), is the cradle of China′ S heavy-duty truck industry. The works manufactured China’s first heavy-duty truck-HUANGHE JN150 8T TRUCK in 1960, and introduced a heavy-duty truck project from STEYR in 1983 as China′ S first enterprise that introduced heavy truck manufacturing technologies from abroad in an all-round manner. SINOTRUK was established following the reform and restructuring in 2001, and has become a domestic and overseas famous heavy-duty truck R&D and manufacturing conglomerate after a dozen years of development. We have initially built an international platform through the red-chip listing in Hong Kong in 2007; In 2009, we forged a strategic partnership with Man which holding a 25%+1 stake in SINOTRUK (Hong Kong) Limited, and introduced D08, D20 and D26 engine technologies, medium & heavy-duty truck axle technologies and corresponding

vehicle technologies, laying a solid foundation for our long-term development. Today, we have become China′ S largest heavy truck manufacturing base that has made a remarkable contribution to the development of China′ S heavy-duty truck industry and economic construction.

Since after the reform and restructuring, we have persisted in independent innovation, vigorously implemented the strategy of leading in technology and build core competitiveness with independent intellectual property, thus becoming an enterprise with most patents in China’s auto industry. SINOTRUK Technical Development Center, among China′ S first group of national corporate technical center, has a testing laboratory accredited by the China National Accreditation Board for Laboratories, is capable of developing and testing vehicles, engine, parts and material processes, own sophisticated processing and testing equipment, and has been up to advanced world standards in terms of equipment such as engine, vehicle, parts vibration and strength test equipment. In 2009, upon approval by the State, the National Heavy-duty Truck Engineering Research Center was inaugurated in SINOTRUK, which undertakes functions such as technical R & D, application demonstration, achievement popularization and technical service in China’s heavy duty truck industry.

We primarily organize the development, manufacturing and sale of trucks, special trucks, buses, special vehicles, engines and engine units, auto parts and special chassis. We have vehicle enterprises include SINOTRUK Jinan Truck Co., Ltd., SINOTRUK Jinan Commercial Truck Co., Ltd., SINOTRUK Jinan Special Vehicle Co., Ltd. and Light-duty Truck Division; engine enterprises including SINOTRUK Jinan Power Co., Ltd. and SINOTRUK Hangzhou Engine Co., Ltd.; an axle enterprise - SINOTRUK Jinan Axle & Transmission Co., Ltd.; as well as transmission enterprises including Jinan Transmission Division and Datong Gear Co., Ltd. We have become an all-series commercial vehicle conglomerate with brands such as Sitrak, Howo, Steyr, Huanghe Commander, Gold Prince, Hohan, Wangpai, Folor, Wero, as well as an enterprise with the most complete range of drive types and powers in China’s heavy truck industry. Our important assemblies, including domestically advanced D10 and D12 diesel engines, T10 and T12 gas engines and internationally advanced MC05, MC07, MC11 and MC13 Europe ll-V engines range from 14Ohp to 580hp in terms of power; world-class single-stage serialized reduction axles, wheel reduction axles and 16.5in-22.5in disc brakes; serialized single-countershaft synchronizer-mounted transmissions, twin-countershaft transmissions, and AMTs with 5, 6, 7, 8, 10, 12 and 16 gears, have formed a golden power industry chain consisting of world advanced engines, pull clutches, transmissions and drive axles. Also, we have 3 automatic body stamping lines, 8 cab welding lines, 12 cab painting lines and 9 vehicle assembly lines, whose equipment have been up to advanced international standards.

With overwhelming superiorities in technology and market in the heavy-duty truck industry, we have achieved substantial sales at home and abroad, and exported products to over 90 countries, thus being accredited as a national vehicle export base by the National Development and Reform Commission and the Ministry of Commerce. Also, we have claimed titles such as "National Advanced Grass-roots Party Organization", "National Civilized Entity", "Chinese Famous Product", "Chinese Outstanding Innovative Enterprise", "China's Most Credible Enterprise" and "China's First Group of 2A Enterprises in Quality and Credit Management".

Our work idea for 2020 and beyond: vigorously implementing the great project of "second business startup", pushing forward the new rise in the level of international and domestic operation networks, new achievements in building capacity through quality brand, the new mode of building the mechanism of cost reduction and benefit increase, and the new creation of strengthening management, refining processes, preventing risks and developing sustainably, and constantly composing new chapters of scientific development, thus achieving new success.