20#无缝管-苏州无缝钢管GB3087 245X10 4650 20#无缝管-苏州无缝钢管GB3087 273X7 4900 20#无缝管-苏州无缝钢管GB3087 273X8 4900 20#无缝管-苏州无缝钢管GB3087 273X10 5050 20#无缝管-苏州无缝钢管GB3087 273X12 5050 20#无缝管-苏州无缝钢管GB3087 219X25 4850 20#无缝管-苏州无缝钢管GB3087 219X30 7000 20#无缝管-苏州无缝钢管GB3087 273X14 4950 20#无缝管-苏州无缝钢管GB3087 325X7 5050
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