Last week, the price of small diameter thick walled steel pipes continued to decline, but the decline has slowed down, and the price of steel billets has slightly rebounded in the second half of the week. At present, the inventory of raw materials in steel mills is generally low, and some steel mills have increased their willingness to restock. It is difficult for short-term raw material prices to continue to decline. As most steel mills have shifted from profit to loss, their willingness to back up prices has significantly increased. This week, Shagang unexpectedly flat out mid factory prices, while Hebei small diameter thick walled steel pipes have continuously limited prices to agents, leading steel mills to actively back up at low prices, which will support market trends. The key to the quality of thick walled steel pipes is the uniformity of the wall thickness. If the wall thickness of thick walled steel pipes is not controlled, it will directly affect the quality and purpose of the steel pipes. Thick walled steel pipes and large diameter thick walled steel pipes are generally used for various mechanical processing and thick walled parts processing. The uniformity of the wall of thick walled steel pipes will directly affect the quality of later processed parts. If the wall of thick walled steel pipes is not controlled, the overall quality of the steel pipes cannot be strictly controlled. Choose suitable sites and warehouses for storing thick walled steel pipes. Choose a clean and unobstructed area, away from factories and mines that produce harmful gases or dust. Weeds and all debris should be removed from the site, and thick walled steel pipes should be kept clean. Materials that are corrosive to thick walled steel pipes such as acid, alkali, salt, cement, etc. shall not be stacked together in the warehouse. Different types of thick walled steel pipes should be stacked separately to prevent confusion and contact corrosion. Large section steel, steel rails, stainless steel plates, large diameter thick walled steel pipes, forgings, etc. can be stacked outdoors.