As the saying goes: "There is no year in the first month," Xiao Bian is here to make a fool of you~, "Year" is good! Of course, there must be a "machine" performance in the "machine" year~~~ Please watch the video: Created on demand PC210-8M0 heavy work specification hydraulic excavator â— The biggest feature of this excavator is the use of a larger PC220-8M0 reinforced chassis. As the weight of the chassis increases, the equipment can be stabilized at full load. â— Standard equipped with a more wear-resistant and reliable medium-sized bucket. â— The walking performance is greatly improved, and the driving steering is more convenient. â— The semi-protective net in front of the cab further enhances the safety of the driver. â— Strengthening the turntable makes the durability even better. â— On the basis of the enhanced stick design, the wear-resistant plate is extended to the root of the stick. (This article is from Komatsu)
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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