my country's PVC pipes have been developing rapidly in recent years, with an annual increase rate of 8%, and an annual increase rate of 2%. Among the plastic pipes, the amount of PVC pipes has always been far away, and it is widely used in water supply and drainage pipes.
The angle of refurbishment of manufactured products has yet to be developed. Because technical means are relatively sophisticated, in recent years, PVC water supply pipes have not invested much in the angle of refurbishment of manufactured products. There are not many new products. There are usually many products on the market, high-skilled and high-value-added products. There are few, the same general-purpose products, medium and low-grade manufactured products occupy the majority, and low-grade products are few.
The impact of lead ban on PVC-U pipes may be faced directly, and the delineation of the use of non-lead salt thermal stiffeners for modified plastic PVC-U drinking water pipes will have a greater impact on the PVC pipe industry. Although the relevant departments, industry associations and some production companies have made a lot of efforts, held a press conference by the way, and used the media for publicity, the whole situation is gradually rationalized, but because some users still do not understand the actual environment very well, The growth rate of PVC-U drinking water pipe consumption is less than the average addition level, and there is also a shadowy front impact on the use of other PVC-U pipes.
Expansion of the scope of use, market promotion work needs to be advanced, and the use and supporting martial arts need to be further improved. The industry, product announcements, and the generalization of modified plastics are not yet in place, which affects the rational use of plastic pipes and the expansion of application scope. The unrelated work of industry associations still needs to be improved, and the publicity and advocacy needs to be strengthened. At present, the application market of products is still concentrated in a few limited areas, and there are other opportunities to open up new application markets. The supporting skills applied to some manufactured products are not complete, and the standardized homework such as the design, construction, and testing of some manufactured products lags behind.
The market is not standard, and some companies create low-quality quality, which affects the healthy development of the industry. Because the plastic pipe market is not standardized, some buyers are not the final users of the products, and they do not care about the brand and quality, forming a market for modified plastics in the market. The products of the same quality are common, so that some products with low local price difference are very easy to sell, and the PVC-U pipe is still relatively cruel. It is known that there are more than 500 various PVC-U production companies in a county-level area, and most of them are family workshops, and the quality and environment are incredible. In the capital of PVC-U pipes, the material quotation accounts for about 70%. A single company reduces the cost of manufacturing products by reducing wall thickness and increasing calcium carbonate in many ways, resulting in low-quality products. Other companies choose two or more grades of substandard quality, use low-ranking processing facilities, and use lead salt adhesives for drinking water pipes to reduce profits, kill the rights and interests of consumers and relax the industry's interests. promise.
The construction quality of the project should be further completed. The quality of the PVC-U pipeline project depends to a large extent on the construction level. The construction ability of good product and negotiation ensures the enhanced operation of the channel retention system project. In some projects, there is a lack of professional training for highly skilled personnel. In the theoretical operation, the planning and construction are carried out in the way of metal pipes. There are situations such as non-standard construction and rough halogen construction. cause poor damage to the pipeline. Some users are still unfamiliar with how to construct and supervise plastic-modified plastic pipes according to regulations or extensive common sense.