?看片免费观看视频下载国产成_精品国产乱码久久久久久88?V_国产a正能量奖励网站_公侵犯人妻中文字幕乐享网

45號(hào)鋼厚壁無(wú)縫鋼管定制價(jià)格/鋼管_厚壁無(wú)縫鋼管

山東宏鉅天成鋼管有限公司         139-6958-0678

材質(zhì)             外徑*壁厚            噸位

45#              457*65                20.91

45#              426*45                20.796

45#              351*65                20.594

45#              325*80                21.516

45#              325*90                27.072

45#              325*85                30.31

45#              325*75                31.646