英语翻译stainless steel which is produced by using chromium as a
英语翻译
stainless steel which is produced by using chromium as a significant alloying element along with nickel and other metal .the result is a tough,hard,corrosion-resistant metai.
tool steel which is a special group of high carbon steels produced in small quantities to high quality specifications.tool steels are used for a wide range of cutting tools and forming dies.
manganese steel which is an alloy containing 12 percent manganese and one percent carbon.this metal is used in mining,railroad,and construction equipment because of its high tensile strength.