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…

北京地区方管价格较上周跌20-30元。本周北京地区贸易商心态较为谨慎，补库速度减缓，方管大户贸易商库存量较为齐全。一些方管厂家做钢厂直发，出货量还不错，主要以山东墨龙和元铧的方管为主。截至5月31日，山东108*4.5报价4750元；山东159*6报价4700元；山东墨龙325*8报价5000元。

The price of local government in Beijing dropped 20-30 yuan from last week. This week, traders in Beijing were more cautious, the speed of replenishment slowed down, and the inventory of large traders under the control of the party was relatively complete. Some square pipe manufacturers make direct delivery in steel mills, with good shipments, mainly in Shandong Molong and Yuanbao square pipe. As of May 31, Shandong 108*4.5 quoted 4750 yuan; Shandong 159*6 quoted 4700 yuan; Shandong Merong 325*8 quoted 5000 yuan.

本周临沂方管厂出厂价格有所下调，下调幅度在20-30元，中等热轧管出厂价格在4320-4380元之间，个别管厂有优惠政策出台刺激出货量。

This week, the ex-factory price of Linyi Fang Pipe Factory has been lowered by 20-30 yuan, and the ex-factory price of medium hot-rolled pipe is between 4320-4380 yuan. Some pipe factories have introduced preferential policies to stimulate the output.

北京地区主要以山东和河南凤宝货为主，包钢和新冶特钢的货几乎没有。北京地区方管厂家零售出货量偏差，在百吨以内，倾向于做钢厂直发，销往西北、西南地区的比较多。贸易商悲观情绪浓郁，倾向于能不补库尽量不补库。短期内北京方管市场还将持稳偏弱运行。

The main products in Beijing are Fengbao in Shandong and Henan, while there are almost no products in Baotou Steel and Xinye Special Steel. The deviation of retail shipments of local managed traders in Beijing area is less than 100 tons, which tends to be direct shipments of steel mills, and more of them are sold to the northwest and southwest regions. Traders are pessimistic and tend to avoid replenishment as much as possible. In the short run, the Beijing Square Management Market will remain stable and weak. 

　　国内镀锌方管价格格局难改继续盘整厂家挺价销售…镀锌方管价格普遍报稳。周初开市，瑞丰355系列带钢报稳，河北主流方管厂家普遍报稳，宽带上调10元对方管支撑明显，各厂家挺价销售，但成交偏弱。今日，河北 大部分地区大雾天气对交通影响较大，唐山地区再次发布重污染…