Base metal milling steel fibers in the early bar ingot, steel block, by forming milling cutter, the base material itself due to the restrictions of tensile strength, tensile strength made of steel fibers usually 600Mpa. According to the data research shows that under normal circumstances, these four types of steel fiber tensile strength (such as steel) the same material conditions to the wire off the type of the best cold Rachel, followed in order by steel plate shear, steel ingot milling type and molten steel melt pumping type. Therefore, it is to be based on practical engineering of steel fiber type, by adjusting the dosage of steel fiber to meet the design requirements, or the use of manganese steel as the base material to make up for lack of strength.

The product does not exceed the scope of the production process Tariff Chapter 72 commodity items are classified according to their respective hot-rolled appearance features, such as wavy ribbon fiber, according to a classification of the General Rules, may be considered classified in heading 72.11. Due to its main purpose is to add steel fiber reinforced concrete base material, if hastily classified in heading 73.26 is debatable