Boron Carbide (chemical formula approximately B4C) is an extremely hard boron–carbon ceramic and covalent material used in tank armor, bulletproof vests, engine sabotage powders,as well as numerous industrial applications. With a Vickers hardness of >30 GPa, Boron Carbide Abrasive Powder is one of the hardest known materials, behind cubic Boron Nitride and diamond.
Boron Carbide Powder was discovered in the 19th century as a by-product of reactions involving metal borides, but its chemical formula was unknown. Boron Carbide Applications Boron Product was not until the 1930s that the chemical composition was estimated as B4C.Controversy Boron Carbide Buy remained as to whether or not the material had this exact 4:1 stoichiometry, as, in practice the material is always slightly Titanium Dioxide carbon-deficient with regard to this formula, and X-ray crystallography shows that its structure is highly complex, with a mixture of C-B-C chains and B12 icosahedra.
These features argued against a Pvc Resin very simple exact B4C empirical formula.Because of the B12 structural unit, the chemical formula of "ideal" boron carbide is often written not as B4C, but as B12C3, and the carbon deficiency of boron carbide described in terms of a combination of the B12C3 and B12CBC units.
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In the following, for the 20 truck brands commonly used by heavy trucks, the division of the subsidiary companies of the brand is sorted out to facilitate the clear understanding of CNHTC products.
Among them, Steyr (STR) and Stewart (STRW), which were produced earlier by China National Heavy Duty Truck Group Jinan Truck Co., Ltd., have all been discontinued. The HOWO A7 is also replaced by the current HOWO T7. Before the HOWO T7, it was mainly exported for the original MAN engine.
China National Heavy Duty Truck Group Jinan Commercial Vehicle Co., Ltd. also produces small-sized dragons, the Yellow River prince, and Haojun.
What is most special is the Haohe truck of China National Heavy Truck Group Co., Ltd., which was produced by CNHTC Jining Commercial Vehicle Co., Ltd. but is part of the marketing system of China National Heavy Duty Truck Group Jinan Truck Co., Ltd.
China National Heavy Duty Truck Group Fujian Haixi Automobile Co., Ltd. mainly produces Haoman, in addition to four series of products such as 1, 2, 3, and 6 series, and F7 series light trucks.
China National Heavy Duty Truck Group Chengdu Trump Commercial Vehicle Co., Ltd. mainly produces the Trumpets 7 Series and 717 Micro Card Series. Due to the successful development of new models such as the 7 Series Light Trucks, the old Trumps brand products have now all withdrawn from the market.
Sinotruck common 20 kinds of truck brands
Recently, China National Heavy Duty Truck Corporation held the SITRAK brand launching ceremony and product off-line ceremony. This heavy truck and Mann co-developed the product brand has attracted widespread attention. The SITRAK brand belongs to CNHTC Jinan Commercial Vehicle Company. China National Heavy Duty Truck OEMs include Jinan Truck Co., Ltd., Jinan Commercial Vehicles, Special Vehicles, and Jining Commercial Vehicles. At this point, more than 10 brands such as SITRUK, HOWO, Steyr, Yellow River and Haohao were formed, including more than 2,000 models including heavy trucks, medium trucks, light trucks, mining dump trucks and special vehicles.