玻璃钢管也称玻璃纤维缠绕夹砂管（RPM管）。主要以玻璃纤维及其制品为增强材料，以高分子成分的不饱和聚脂树脂、环氧树脂等为基本材料，以石英砂及碳酸钙等无机非金属颗粒材料为填料作为主要原料。管的标准有效长度为6m和12m，其制作方法有定长缠绕工艺、离心浇铸工艺以及连续缠绕工艺三种。可根据产品的工艺方法、压力等级PN和刚度等级SN进行分级分类。
Fiberglass reinforced plastic pipe (RPM pipe) is also known as fiberglass wound sand pipe (RPM pipe). Glass fibers and their products are used as reinforcing materials, unsaturated polyester resins and epoxy resins with macromolecule components are used as basic materials, and inorganic non-metallic granular materials wanggui.89ix.com linhuaye.89ix.com fanghuomen.89ix.comfenliqi.89ix.comsuoju.37ix.com.cn hengliu.37ix.com.cnsuch as quartz sand and calcium carbonate are used as fillers. The standard effective length of the pipe is 6m and 12m. There are three manufacturing methods: fixed length winding process, centrifugal casting process and continuous winding process. The product can be classified according to its process method, pressure grade PN and stiffness grade SN.