產(chǎn)品名稱規(guī)格型號(hào)產(chǎn)品名稱規(guī)格型號(hào)預(yù)應(yīng)力水泥電桿DΦ300×6×35×Y非預(yù)應(yīng)力水泥電桿DΦ300×6×50×G預(yù)應(yīng)力水泥電桿DΦ300×6×70×Y非預(yù)應(yīng)力水泥電桿DΦ300×6×80×G