Yield Of Steel 鋼的屈服點(diǎn)
Yield Point Of Steel Bar 鋼筋屈服點(diǎn)
Yielding Steel Arch 讓壓性金屬支架
Yielding Steel Prop 讓壓可縮性鋼支柱
Yield Point Of Steel Bar 鋼筋屈服點(diǎn)
Yielding Steel Arch 讓壓性金屬支架
Yielding Steel Prop 讓壓可縮性鋼支柱