DIN471-B ụdị na-agbanwe agbanwe mgbanaka maka aro, okpomọkụ ọgwụgwọ chọrọ quenching na tempering.The ihe bụ tumadi C67S mmiri ígwè, na ngwaahịa elu na-emeso.Igwe mmiri na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na phosphated, na-esi ike na ịdị nro, na elu na-ekpochapụ na deburred.