In recent years, PVC pipes have developed rapidly in China, with an annual growth rate of 8% and an annual demand growth rate of 2%. In the plastic pipe, PVC pipe consumption has been far ahead, it is widely used in water supply and drainage pipes.

Product innovation needs to be improved -- due to the relatively mature technology, PVC water supply pipes have not invested much in product innovation in recent years, with relatively few new products, more common products in the market, less high-tech and high added value products, and similar general products, middle and low-grade products account for the majority, while high-grade products are less.

The impact of lead prohibition on PVC-U pipes -- it should be noted that the regulation that PVC-U drinking water pipes should use non lead salt heat stabilizers has a great negative impact on the PVC pipe industry. Although the relevant departments, industry associations and some production enterprises have made a lot of efforts to hold a special press conference and use the media for publicity, the overall situation is gradually rationalized, but because some users still don't know the real situation very well, the growth rate of PVC-U drinking water pipe consumption is less than the average growth level, and there are potential negative effects on the application of other PVC-U pipes Surface effect.

The expansion of application areas and market promotion work need to be improved, and the application and supporting technologies need to be further improved -- the industry and product publicity, science popularization and other aspects are not in place, which affects the rational use of plastic pipes and the expansion of application areas. The related work of the trade association needs to be improved, and the promotion and publicity efforts need to be strengthened. At present, the application market of products is still concentrated in a limited number of areas, and there are still opportunities to explore new application markets. Some products have not yet completed the application of supporting technology, some products design, construction, acceptance and other standardization work is relatively lagging behind.

The market is not standardized, some enterprises have poor product quality, which affects the healthy development of the industry -- because the plastic pipe market is not standardized, some purchasers are not the end-users of the products, and do not pay attention to the brand and quality, resulting in the simultaneous existence of different quality products in the market, and even some products with low quality difference are better sold, and PVC-U pipes are still relatively serious. It is understood that there are more than 500 PVC-U production enterprises in a county-level area, and most of them are family workshops. The quality situation can be imagined. In the cost of PVC-U pipeline, the price of raw materials accounts for about 70%. Some enterprises reduce the product cost by reducing the wall thickness and adding a large amount of calcium carbonate, resulting in poor product quality. Other enterprises use more than two kinds of trademarks of different quality, use low-grade processing equipment, and use lead salt stabilizer for drinking water pipes to reduce costs, which damages the rights and interests of consumers and destroys the reputation of the industry.

The construction quality of the project should be further improved -- the quality of PVC-U pipeline project largely depends on the construction level, good products and good construction can ensure the good operation of the pipeline system project. Some engineering technicians lack professional training and follow the method of metal pipe in actual operation for design and construction. There are situations such as nonstandard construction and barbaric construction, etc., which do not give full play to the technical and economic performance of PVC-U pipe, and even cause damage to the pipe. Some users still don't know how to carry out construction and supervision according to regulations.

In recent years, PVC pipes have developed rapidly in China, with an annual growth rate of 8% and an annual demand growth rate of 2%. In the plastic pipe, PVC pipe consumption has been far ahead, it is widely used in water supply and drainage pipes.

Product innovation needs to be improved -- due to the relatively mature technology, PVC water supply pipes have not invested much in product innovation in recent years, with relatively few new products, more common products in the market, less high-tech and high added value products, and similar general products, middle and low-grade products account for the majority, while high-grade products are less.

The impact of lead prohibition on PVC-U pipes -- it should be noted that the regulation that PVC-U drinking water pipes should use non lead salt heat stabilizers has a great negative impact on the PVC pipe industry. Although the relevant departments, industry associations and some production enterprises have made a lot of efforts to hold a special press conference and use the media for publicity, the overall situation is gradually rationalized, but because some users still don't know the real situation very well, the growth rate of PVC-U drinking water pipe consumption is less than the average growth level, and there are potential negative effects on the application of other PVC-U pipes Surface effect.

The expansion of application areas and market promotion work need to be improved, and the application and supporting technologies need to be further improved -- the industry and product publicity, science popularization and other aspects are not in place, which affects the rational use of plastic pipes and the expansion of application areas. The related work of the trade association needs to be improved, and the promotion and publicity efforts need to be strengthened. At present, the application market of products is still concentrated in a limited number of areas, and there are still opportunities to explore new application markets. Some products have not yet completed the application of supporting technology, some products design, construction, acceptance and other standardization work is relatively lagging behind.

The market is not standardized, some enterprises have poor product quality, which affects the healthy development of the industry -- because the plastic pipe market is not standardized, some purchasers are not the end-users of the products, and do not pay attention to the brand and quality, resulting in the simultaneous existence of different quality products in the market, and even some products with low quality difference are better sold, and PVC-U pipes are still relatively serious. It is understood that there are more than 500 PVC-U production enterprises in a county-level area, and most of them are family workshops. The quality situation can be imagined. Cost of PVC-U pipe