方管的执行标准和用途范围方管的执行标准和用途范围：第一、低压流体输送用镀锌焊接方管，标准号为GB/T3091-2008。代表材质Q235A,Q235BQ345B等。主要用于输送水、煤气、空气、油和取暖热水或蒸汽，用途仅限于一般较低压力流体。 第二、低…

广州市场方管价格小幅下调。今日期螺宽幅震荡尾盘抬升回调小幅翻红，方管原材料方面现昌黎普碳方坯含税出厂3480跌20。今日广州方管市场成交偏弱运行，价格下跌20-30不等，部分一线主导资源因价格下调下有溢价空间故成交尚可，小幅放量；外省二三线资源成交相对偏弱一些。另一 方面，现广州地区连续降雨不断，对下游需求影响不可忽视，这也是近期当地成交难以出现持续性大幅放量去库的主要因素，且尾盘钢坯又下调20再度加剧市场悲 观心态，方管厂家主流以成交出货为主，涨价信心不足。综上所述，预计明日广州当地方管价格或偏弱运行。

Guangzhou market management prices slightly reduced. Today's snail wide oscillation tail plate raised slightly reddened, square tube raw materials are now Changli Pu carbon billet with taxes factory 3480 drop 20. Nowadays, the transaction of Guangzhou Square Management Market is weak, and the price falls by 20-30. Some of the leading resources in the first line are still acceptable because of the premium space due to the price reduction. The transaction of the second and third line resources in other provinces is relatively weak. On the other hand, the continuous rainfall in Guangzhou has a significant impact on downstream demand, which is also the main factor that makes it difficult for local transactions to sustain large-scale warehousing, and the tail slab reduction of 20 once again aggravates the market pessimism. The main trend of square tube manufacturers is delivery, and lack of confidence in price increase. To sum up, it is expected that Guangzhou local management price will be weak tomorrow.

方管价格方面，现广州市场上韶钢产Ф8-10mm高线市场价格为4330 元，Ф8-10mm抗震盘螺4450元/吨，18-25三级抗震螺纹钢4140元/吨；广钢产Ф8-10mm高线市场价格为4150元，Ф8-10mm抗 震盘螺4300元/吨，18-25三级抗震螺纹钢4070元/吨；以上资源较节前降20元。

As for square pipe price, the market price of Shaogang 8-10mm high-speed line in Guangzhou is 4330 yuan, 8-10mm anti-seismic disc screw 4450 yuan/ton, 18-25 grade anti-seismic screw steel 4140 yuan/ton; Guangzhou steel_8-10mm anti-seismic disc screw 4300 yuan/ton, 18-25 grade anti-seismic screw steel 4070 yuan/ton; the above resources are 20 yuan lower than before. 

　　长沙方管市场价格持稳市场观望氛围浓长沙方管市场价格持稳。今日市场需求依旧惨淡，而今日的价格持续下调也没有让出货有所好转，整体成交偏差，社会库存逐步上升，大户现货库存基本在1万左右，库存压力较 大，外来资源在武汉市场仍吃力，价格有一定暗降，…