The demand side of the steel pipe is less affected

　　The change of demand side is an important factor to guide the price of spiral steel pipe futures. Through the comparison of historical data, it can be found that there is a significant positive correlation between the monthly growth rate of monthly production and the monthly closing price of spiral steel futures. This year, the monthly decline in pig iron production month by month narrowed,Spiral Welded Steel Pipe Manufacturing also oscillated higher. At present, the weekly high-frequency data show that with the end of Tangshan production limit, July steel production capacity utilization rose, to maintain more than 85%, second only to the peak in May. In other words, spiral steel pipe demand is also in a relatively high, which support the role of spiral steel pipe.