| 摘要 |
A STEEL SUITABLE FOR A FABRIC WITH OR WITHOUT PAINTING AND HAS GOOD CORROSION RESISTANCE WITH REPRODUCIBILITY, EVEN IF THE STEEL IS COMPOSED MAINLY OF ORDINARY CARBON STEEL OR LOW ALLOY STEEL, WHEREIN THE SURFACE OF THE STEEL IS COATED WITH RUST COMPRISING ONE OR MORE SELECTED FROM TI, NB, TA, ZR, V AND HF IN THE TOTAL AMOUNT OF 0.01 WT% OR MORE. IN THE STEEL, THE FRACTION OF _-FEOOH AND AN AMORPHOUS RUST IS 35 WT% OR MORE, AND THE FRACTION OF -FEOOH IS 20 WT% OR LESS. |
