方管的执行标准和用途范围方管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、低压流体输送用镀锌焊接方管，标准号为GB/T3092-2008。代表材质同上。主要用于输送水、煤气、空气、…

无锡方管市场价格暂稳。原料方面，今日唐山瑞丰带钢价格平稳，主流管厂对出厂价格未做调整，目前无锡方管市场价格暂稳。本周市场行业趋弱下行，多数商家挺价意愿较强， 但市场需求不温不火，再加上近期外界宏观影响影响，对市场信心不足。库存方面基本稳定，整体处于正常的库存量。预计短期内无锡方管市场价格将稳中趋弱运行。

Wuxi Fangguan market price is stable for the time being. In terms of raw materials, the price of Tangshan Ruifeng strip steel is stable today. The main pipe factory has not adjusted the ex-factory price. At present, the market price of Wuxi square pipe is stable. This week, the market industry is weakening and declining. Most businessmen have strong willingness to bid, but the market demand is not warm, coupled with the recent external macro-impact, lack of confidence in the market. Inventory is basically stable, the overall inventory is in normal. It is expected that the market price of welded and plated pipes in Nanjing will stabilize and weaken in the near future. 价格方面，现唐山京华产4寸（3.75mm）方管价格4250元。镀锌方管：友发产4寸 （3.75mm）镀锌方管价格5000元，正金元产4寸（3.75mm）镀锌方管价格4880元，天虹（正大）产4寸（3.75mm）镀锌方管价格4840元。 以上价格均与上个交易日持平。

In terms of price, Tangshan Jinghua now produces 4 inches (3.75 mm) square tube price of 4250 yuan. Galvanized pipe: Youfa 4 inch (3.75 mm) galvanized pipe price 5000 yuan, Jungjin 4 inch (3.75 mm) galvanized pipe price 4880 yuan, Tianhong (Zhengda) 4 inch (3.75 mm) galvanized pipe price 4840 yuan. The above prices are all the same as on the previous trading day.

国内方管价格或将窄幅震荡运行厂家观望心态…方管方管价格持稳运行，今日145小窄带开盘较昨持稳，主流方管厂家报3890元/吨，昨日成交放量，今日依然强势运行，下游用户多阶段性补货，加之 期货市场浮动较小，145方管挺价意愿明显，下游需求有了小幅度的释放，部分企业停售出清，目前小窄带市场存在一定的利润空间，虽然下游架子管接单情况较 差，但145方管可流向外地市场，近… 国内方管市场价格仍偏弱运行厂家低价资源出…方管元旦过后今日国内方管市场价格有涨有跌，各地跟调意向不高，均持稳出货，经过此次小涨仅有的需求也有所刺激，部分方管厂家低价资源出货尚可，临近春 节，各工地也是有出现赶工现象，部分贸易也已经编排放假，出货仍以库存为主，资金回笼仍然较慢，整体观望心态较重，但新年刚开始也出现一定的利好消息，为支持实体经济发展，…