Changchun drainage pipe manufacturer PVC drainage pipe, cast iron drainage pipe, shipped nationwide

Description :

　　Changchun drainage pipe manufacturer PVC drainage pipe, cast iron drainage pipe, shipped nationwide

　　Based on our experience and customer feedback, we have summarized some tips for installation, such as: 1. In hot summer, vegetable oil is suitable for lubricating oil; In the cold winter, rubber rings can be preheated with hot water to reduce hardness and quickly installed;

　　2. The backfilling of the pipe trench should be layered and compacted. If the pipeline crosses a road, to avoid damaging the pipe body, coarse sand can be backfilled to the top of the pipe;

　　3. During the construction process of cast iron pipes in summer, soil can be appropriately covered at the interface;

　　4. If there is no condition for water pressure testing, air pressure testing can also be considered;

　　5. Three connections and elbows must be supported with concrete piers;

　　6. Sometimes interface leakage occurs during construction. To avoid this phenomenon, it is necessary to strictly follow the specifications during installation, ensuring that each pipe is installed in place. For large-diameter pipelines, the condition of each interface rubber ring needs to be checked.

　　7. In order to facilitate the installation of ductile iron pipes, the rubber ring can be soaked with water first. If it is necessary to borrow the pipe during installation, if the self borrowing angle of the pipe cannot meet the requirements, the socket of the pipe can be cut diagonally according to the required borrowing angle after calculation. This can increase the borrowing angle and ensure safe use.

　　At present, the rush to work is slowing down, and demand is returning to the off-season near the end of the year. During the period of strong fluctuations in futures prices, the terminal maintains speculative replenishment, providing certain support. With the increase of production restrictions in Tangshan, Shandong requires heating season production restrictions comparable to those in the Beijing Tianjin Hebei region, indicating that the resumption of blast furnace production is still constrained. In the weak supply-demand situation, prices may maintain a certain degree of oscillation and strong trend. However, there is still a risk of adjustment in the overall black series futures prices, and it cannot be ruled out that speculative buying intentions may be suppressed in the future, resulting in a slight lack of support for prices on the demand side. Short term prices can see an adjustment range of 30-70.

　　Personal opinion:

　　At present, the demand in the north is gradually weakening, and construction sites have almost stopped working since mid December. In the later stage, the demand points are concentrated in the markets of East China, South China, and other regions. Under the influence of public events in Jiangsu and Zhejiang regions, construction site starts are also restricted, and the market's willingness for winter storage is generally low; In terms of steel plant resources, the northern region is constrained by the impact of heating season production restrictions, resulting in low operating rates and low supply of steel plants. In addition, steel plants such as Shagang in East China have recently undergone frequent maintenance, leading to a shortage of supply in the market. Many specifications of goods are in short supply, and the ownership of goods has been transferred to steel plants, which provides strong support for prices. In the short term, there is still a strong adjustment trend, and risks are gradually increasing. Currently, prices are high and winter storage willingness is not strong, and there is still room for further decline in the future.

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