钢卷尺

steel truss

tempered forged steel

heat-resisting steel sheets and plate(s)

austenitic steel

heating of bar-shaped bodies from steel, iron, ohmic-resistance heating

ferroconcrete【建】;reinforced concrete\nR.C.\n建;steel concrete【建】

pitting test for stainless steel【材】

forged steel for ship machinery parts【船】