190X100,120X120,16mn钢管精拔方管- 面议 50*50*2精拔方管,100x70,12Cr2MoWVTiB钢管精拔方管- 面议 90X40,545x545,480x480精拔方管- 面议 415X415,30*50*3精拔方管,280*280*15精拔方管精拔方管- 面议 38CrMoAl钢管,300x300,750X750精拔方管- 面议 10x10,30*30*3.0,SA210A1钢管精拔方管- 面议