slag trap

slag slag accretion slag bath slag blanket slag blowhole slag build-up slag cement slag code slag crust slag entrapment slag forming constituent slag forming period

depreciation-appraisal depreciation-arbitrary depreciation-composite life depreciation-compound innterest depreciation-double-declining balance method depreciation-equal-annual payment depreciation-fifty-percent depreciation-fixed instalment method depreciation-fixed percentage of cost method depreciation-gross earning method