保证方管曲折和校直最有效的方法让现已加工成制品方管具有较小曲折度还得依靠机械东西校直机来完结。所以为了消除方管曲折，一切方管都需求经过冷校直。方管曲折是因为轧机调整不妥，轧制时残留的剩余应力以及因为沿管子截面和长度上冷却不平等…

本周北京镀锌方管市场价格涨跌互现。价格方面：截至11月27日，北京市场津西产200*200H型钢价格为3760元，较上周市场价格涨50元；唐山产25#工字钢价格为4060元，较上周市场价格跌30元；唐山产16#槽钢价格为4040元，较上周市场价格跌20元，唐山产5#角钢价格为4020元，较上周市场价格跌60元。(以上唐山资源价格均为过磅含税）

This week, the price of galvanized square tube in Beijing is up and down. Price: as of November 27, the price of 200 * 200H section steel produced in Jinxi of Beijing market was 3760 yuan, 50 yuan higher than last week's market price; the price of 25 ᦇ I-beam produced in Tangshan was 4060 yuan, 30 yuan lower than last week's market price; the price of 16 ᦇ channel steel produced in Tangshan was 4040 yuan, 20 yuan lower than last week's market price, and the price of Tangshan 5 ᦇ angle steel was 4020 yuan, 60 yuan lower than last week's market price. (the above Tangshan resource prices are overweight and tax inclusive) 

前半周受全国大范围的雨雪天气影响，市场需求萎靡以及期钢盘面跳水下行加重市场观望心态，国内工槽角报价纷纷走低，而H型钢方面因部分中、小规格较为紧缺，以及上游企业主动拉涨带动，现货市场表现较为坚挺。后半周受成本端强势拉涨，期钢盘面上行提振市场信心，现货市场报价稳步上涨，下游用户市场参与度增强。现已临近月底，方管厂家资金压力较大，但是在成本高位的情况下方管厂家方面涨价情绪较为强烈，所以对于近期市场价格有一定的支撑。

In the first half of the week, affected by a wide range of rainy and snowy weather in China, the sluggish market demand and the diving downward trend of the steel plate increased the market wait-and-see mentality, and the domestic slot angle quotation fell one after another, while the spot market performance of H-beam was relatively strong due to the shortage of some medium and small specifications and the active pull-up of upstream enterprises. In the second half of the week, the price of spot market rose steadily, and the participation of downstream users in the market was enhanced. Now it is near the end of the month, the square tube manufacturers have great financial pressure, but in the case of high cost, the square tube manufacturers have strong price rising sentiment, so they have certain support for the recent market price. 

预测：

forecast: 

目前唐山方管企业生产积极性较高，但是下游需求不温不火采购情绪较为谨慎，仅在低价资源成交尚可。在需求跟进不足的情况下厂内库存将会累增压制市场价格上行，但是成本端居高不下厂商盼涨情绪较高，而临近月底方管厂家资金压力来袭也有回笼资金的意愿，综上所述：预计下周北京镀锌方管市场价格盘整运行。

At present, Tangshan Fangguan enterprises are more active in production, but the downstream demand is not warm and tepid, and the purchasing sentiment is more cautious, and only the transaction of low-cost resources is acceptable. In the case of insufficient demand follow-up, the inventory in the factory will increase gradually to suppress the upward trend of market price. However, the cost side remains high, and manufacturers have a high desire to rise. In addition, near the end of the month, the square tube manufacturers are also willing to recover their funds. In conclusion, it is expected that the market price of galvanized square tubes in Beijing will be consolidated next week. 

　　合肥方管市场降后观望厂家出货尚可合肥方管市场降后观望。唐山京华新国标产1.5寸（3.5mm）方管主流价格报价4190元，4寸（3.75mm）方管主流价格报价4130元，6寸（4mm）方管主流价格报价4340元。方管原料方面，今日上游昌黎部分钢坯公布12月31日--1月2日…