工业结构钢
industrial structural steel
工形截面钢压弯构件
I-section steel beam-columns
工模具钢Cr8Mo2WSiV
Tool and Die Steel Cr8Mo2WSiV
铬镍不锈钢及抗热钢弹簧线材–美国材验学会
ASTM A313 – 1987 Chromium – Nickel Stainless and Heat-resisting Steel Spring Wire – ASTM A313 – 1987
铬钼合金钢
chrome molybdenum alloy steel