Fasteners are the general term of the class of mechanical parts used in fastening two or more parts (or components) into a whole. It is widely used in energy, electronics, electrical appliances, machinery, chemical, metallurgy, mold, hydraulic and other industries, at the same time, in various kinds of machinery, equipment, vehicles, ships, railway, bridge, construction, structure, tools, instruments, chemical, instruments and supplies, you can see all kinds of fasteners, is the most widely used mechanical foundation parts. It is characterized by a wide variety of variety specifications, different performance uses, and a very high degree of standardization, series, and generalization. Therefore, a class of fasteners that already have national standards is called standard fasteners, or simply standard ones.
Ferro vanadium consist of vanadium and iron, mainly used as alloys in steel-making additives, high ferro vanadium alloy is also used as a additive. Commonly used vanadium iron containing vanadium 40%, 60% and 80% of three.
Manganese Oxide Fertilizer Grade: Application: The product is generally used by the fertilizer industry. Fertilizer Grade: Appearance: Fine greenish-brown powder Total Manganese (Mn): 54% +/- 2% Manganese Oxide (MnO): 68% Iron as Fe: 12% max. Silica as SiO2: 12% max. Alumina as Al2O3: 5% max. Manganese Dioxide (MnO2): 2% max. Screen analysis 100 mesh (BSS): 95-100% Passing.
