30日唐山槽钢价格持稳:正丰5#5010,6.3#4960,8#4910,20#5010,22-30#5210,36-40#5450,电力22-28#5220,30#5220,32#5320,祥泰6.3#4970,8-16#4920,18-20#4950,22#5120,元丰8-20#4920,申恒8-16#4940,瑞兴5#5090,6.3#5000,8-16#4950,18-20#4980。

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