PPR pipes, compared to traditional cast iron pipes, galvanized steel pipes, cement pipes, and other pipelines, have advantages such as energy and material savings, environmental protection, lightweight and high strength, corrosion resistance, smooth inner walls that do not accumulate scale, ease of construction and maintenance, and a long service life. They are widely used in building water supply and drainage, urban and rural water supply and drainage, urban gas, power and optical cable sheathing, industrial fluid transportation, agricultural irrigation, and other fields in construction, municipal engineering, industry, and agriculture. In recent years, with the continuous increase in market demand from industries such as construction, municipal engineering, water conservancy, agriculture, and industry, China's PPR pipe industry has shown rapid development. According to surveys, the production of plastic pipes in 2009 was 5.804 million tons, a year-on-year increase of 18.9%, and from January to September 2010, the production of plastic pipes was 5.528 million tons, a year-on-year increase of 28.23%. At the same time, as consumers' quality requirements for products in terms of environmental protection, health, and durability continue to rise, the production of plastic pipes in China has increased, along with continuous improvements in product quality, accelerated technological advancement in the industry, and a growing number of large-scale branded enterprises. New materials and structures continue to emerge, advanced system design concepts are constantly being introduced, the functionality of products is becoming more prominent, and application fields are further expanding. It is analyzed that the market share of plastic pipes in China has exceeded 30% among all types of pipes. By 2015, in newly built, renovated, and expanded projects across the country, 85% of building drainage pipes will use plastic pipes, 80% of building rainwater drainage pipes will use plastic pipes, the usage of plastic pipes in urban drainage pipes will reach 50%, 85% of building water supply, hot water supply, and heating pipes will use plastic pipes, 80% of urban water supply pipes (DN400mm and below) will use plastic pipes, and 90% of village and town water supply pipes will use plastic pipes. The application of plastic pipes for urban gas (medium and low-pressure pipes) will reach 40%, and 90% of building electrical wiring conduit pipes will use plastic pipes. It is predicted that during the 12th Five-Year Plan period, the production of plastic pipes in China will maintain a growth rate of around 10%. By 2015, the national production of plastic pipes is expected to approach 12 million tons, with the market share of plastic pipes in various types of pipes in the country exceeding 60%. PPR pipes, officially known as random copolymer polypropylene pipes, are currently one of the most commonly used water supply pipes in home decoration projects. The quality control issues of PPR raw materials arise because PPR is synthesized from (PP and PE) via gas-phase method random copolymer polypropylene, where the structural characteristic is that PE molecules are irregularly linked within the PP molecules, with molecular weights ranging from 300,000 to 800,000. The pipes produced from PPR raw materials are also known as random copolymer polypropylene pipes, which were developed and applied in the late 1980s to early 1990s. Due to their excellent performance and wide application fields, they have secured a place in the plastic pipe market and are recognized as green and environmentally friendly products. However, recent market operations have revealed several quality issues concerning PPR plastic pipes, which significantly hinder the healthy development of the PPR pipe market.