Ferro-manganese (Fe-Mn) is an important additive used as a deoxidizer in the production of steel. It is a master alloy of iron (Fe) and manganese (Mn) with a minimum Mn content of 65 %, and maximum Mn content of 95 %. It is produced by heating a mixture of the oxides of Mn (MnO2) and iron (Fe2O3) with carbon (C) normally as coke or coal.
http://www.glory-metallurgy.co....m/ferromanganese-all
Flanges can either be forged or cast. Both manufacturing methods have their advantages and disadvantages, depending on the application you have in mind for your flange. Here at Texas Flange, we primarily deal with forged flanges due to the outdated nature and lower standard of quality of cast flanges. Below, we will delve into the advantages and disadvantages of both forged steel flanges and cast iron flanges.
http://www.gcflange.com/plate-flanges/
Photochromic lenses are just like normal lenses but they automatically become dark when we move in the sunlight. Ultraviolet rays coming from the sun affect the molecules present in the photochromic lenses therefore, these lenses change their colors. These lenses get darker in bright lights and vice-versa.
http://www.evergrow-optical.com/photochromic-lens/
Do you ever stop to ask: Is it better to use liquid or powder laundry detergent? Most people just grab whatever is cheapest or most convenient. But there are some important differences between the two types of detergent that you should know before making your next purchase. In this article, we will discuss the pros and cons of liquid vs powder laundry detergent, so that you can make an informed decision about which type is best for you!
http://www.etransfarlifech.com/laundry-powder/
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