The price of galvanized square pipe is stable and tends to be strong. Since yesterday's futures market, the black system has risen actively, together with the news of the second round of the central ecological environmental protection supervision and the implementation plan of air pollution prevention and control in the third quarter of Wu'an area, which has led to the rapid increase of spot prices today. The price of galvanized square tubes in Hebei area has increased twice, and the total price of factory has increased by 30-50 yuan. Mainstream pipe factory square pipe 4 inch (3.75mm) ex-factory quotation is 4150-4460 yuan, galvanized pipe 4 inch (3.75mm) ex-factory quotation is 5170-5430 yuan, good deal. Downstream traders have not kept up with the rise for the time being. Businessmen generally say that the recent price adjustment is too fast to keep up with the rhythm. The operation is mainly shipment, and market sentiment is on the sidelines. In the short term, high raw materials or continue to drive spot prices strong, galvanized square tube wait-and-see trend.