| http://www.w3.org/ns/prov#value | - Among these, desirable are iron group elements and alloys thereof such as stainless steel, ferroalloys, Monel metals, permalloy, Ni--Mo alloys, Fe--Co alloys, alloyshaving superhigh resistance to heat, Co--Ni alloys and Co--Cr--W--Mo alloys, because these metals or alloys exhibit catalytic activity On the thermal decomposition reaction of hydrocarbons and further promote graphitization of carbon.
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