PP-R（polypropylene random）管又叫三型聚丙烯管和又叫無規共聚聚丙烯管或PPR管，具有節能節材、環保、輕質高強、耐腐蝕、內壁光滑不結垢、施工和維修簡便、使用壽命長等優點，廣泛應用於建築給排水、城鄉給排水、城市燃 氣、電 力和光纜護套、工業流體輸送、農業灌溉等建築業、市 政、工業和農業領域。PP-R管採用無規共聚聚丙烯經擠出成爲管材，注塑成爲管件。
PP-R (polypropylene random tube is also called the three types of polypropylene pipe and is also called non random copolymerized polypropylene pipe or the PPR pipe, with energy saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall scale, construction and easy maintenance, long life and other advantages, widely used in construction to drainage, urban and rural areas to drainage, city gas, electricity and cable sheath, industrial fluid transportation, agricultural irrigation and other construction, municipal, industrial and agricultural areas. PP-R tube using random copolymer polypropylene through extrusion into the pipe, injection into the pipe.
近幾年，隨着建築業、市政工程、水利工程、農業和工業等行業市場需求的不斷加大，中國PPR管材行業呈現出了高速發展態勢。據調查，2009年塑料管道生產量爲580.4萬噸，同比增長18.9%，2010年1-9月塑料管道生產量552.8萬噸，同比增長28.23%。同時，隨着消費者對產品環保、健康、耐用等方面的品質要求不斷提高，我國塑料管道在產量增加的同時，產品質量水平不斷提高，行業的技術進步不斷加快，品牌規模企業不斷增多，新材料、新結構品種不斷涌現，先進的系統設計理念層出不窮，產品的功能性更加明顯、應用領域得到進一步拓寬。分析認爲，中國塑料管道市場佔有率在所有管道中的比例已經超過30%。
PPR pipe with the traditional cast iron pipe, galvanized steel pipe, cement pipe and pipe compared with energy saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall scale, construction and easy maintenance, long life and other advantages, widely used in construction to drainage, urban and rural areas to drainage, City gas, electricity and cable sheath, industrial fluid transportation, agricultural irrigation, construction, municipal, industrial and agricultural areas.
In recent years, with the construction industry, municipal engineering, water conservancy projects, agricultural and industrial market demand continues to increase, China's PPR pipe industry showing a rapid development trend. According to the survey, in 2009 the production of plastic pipes for the production of 18.9% tons, an increase of in 2010 1-9 plastic pipe production volume of over tons, an increase of 28.23%. At the same time, with the consumers of environmentally friendly products, health and durable quality requirements continue to increase, China plastic pipe the output increases at the same time, product quality and continuously improve the level of, accelerating the technical progress of the industry, brand scale enterprises continued to increase, new materials, new varieties are emerging, advanced system design ideas emerge in an endless stream, the functionality of the product is more obvious, the application field of get further widened. The analysis shows that the share of China's plastic pipe market share in all of the pipeline has been more than 30%.
