Thermal coal.
APPLICATIONS Belleville Washers are often used to solvevibration, thermal expansion, relaxation andbolt creep problems. Belleville washersare typically used in conditions of highcurrent loading or cycling. They are used toabsorb vibration and can maintain pre-load inbolted joints, indicating correct pre-loadbased on the gap between adjacent washers. They can also help with â??bolt creepâ?? or stressrelaxation between a bolt and washer
We can supply thermal coal, also known as met coal coking coal or steelmaking coal is a vital ingredient for making steel, iron alloy, carbon and other metals used in every things from building, plane, cookware, automobiles??, etc. Specification; moisture content 16;00, ash content 4.90, volatile matter 40.15, fixed carbon 38.87, Sulphur 0.08, calorific value (kcal/kg) 4776.91 Ultimate Analysis % (coal) Coal 59.1119, hydrogen 4.8079, oxygen 13.8032, nitrogen 1.2970, Sulphur 0.08. The coal origin is Nigeria. Payment term LC/SBLC
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We have currently have available 1000MT of Coltan / Tantalite with a purity of 30% in DRC with capacity to deliver 500 - 1000MT on a monthly basis. The chemical properties are as follows: a) Tantalum: 30.44 % Ta 40.01 % Ta2O5 b) Iron: 1.87 % Fe 10.98 % FeO c) Oxygen: 10.69 % O Coltan is (short for columbiteâ??tantalites and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite (after niobium's original American name columbium), and the tantalum-dominant mineral is the tantalite. Tantalum from coltan is used to manufacture tantalum capacitors which are used for mobile phones, personal computers, automotive electronics, and cameras.
