欧美日韩成人精品,欧美黑人一区,亚洲啊v在线,亚洲国产成人精品久久久国产成人一区

湖北大冶45號(hào)鋼厚壁無縫管/45#鋼厚皮鋼管_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