无锡方管市场坚挺预计后期市场价格将以稳为主无锡方管市场价格稳中个跌。价格方面：现兴亚产57*3mm市价5450元，与上个交易日持平，临沂产108*4.5mm市价4600元，跌50元，较上个交易日跌50元，天淮产377*10mm市价5450元，与上个交易日持平。无锡方管市场坚挺，…

唐山方管价格部分拉涨，市场成交差。今日期货开盘震荡，午后回落，收盘3776跌7元，唐山钢坯收盘降10元，现普碳含税出厂3500元。唐山方管市场今日成交差，部分代理今日出货 不足百吨。昨日早盘期货迅猛拉涨，市场成交火爆，今日开市上涨乏力，螺纹钢议价销售依然稍有问津，在买涨不买落的心态影响下，成交清淡也在情理之中。目前唐山钢厂螺纹钢轧线多满负荷生产，市场供给压力不断增加，价格反弹缺乏有力支撑，预计短期内唐山方管市场将继续震荡下行。

Tangshan Fangguan price part of the pull up, the market difference. Today's futures market shocks, afternoon falls, closing 3776 down 7 yuan, Tangshan steel billet closing down 10 yuan, now ordinary carbon tax factory 3500 yuan. Tangshan side manages the market today to close the difference, some agents today shipped less than 100 tons. Yesterday morning futures soared sharply, market turnover was booming, today's opening market rose weakly, threaded steel bargaining sales are still slightly inquiry, in the buy-up and not buy-down mentality, trading light is also reasonable. At present, the Thread Steel Rolling Line in Tangshan Steel Works is producing at full load, the market supply pressure is increasing, and the price rebound lacks strong support. It is expected that the Tangshan square pipe market will continue to oscillate downward in the short term.

方管价格方面：HPB300高线国义3880涨10元，河钢Φ8mm高线4850元 稳；Φ20mm三级抗震螺纹钢唐钢3860涨10元，唐银3830涨10元；三级盘螺国义3970涨10元，唐银4040元涨10元。

　　焊接方管与无缝方管的本质差别在哪里？无缝方管是由无缝钢管冷拔挤压成型的方型钢管，并非直出的焊接方管，而焊接方管也称焊管，是用钢板或带钢经过卷曲成型后焊接制成的方管。焊接方管生产工艺简单，生产效率高，品种规格多，设备资少， 常用材质为：Q235…