Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirement for prestressing steel for pipes
国外标准现行
标准号:PREN 642-1992
标准名称: 包括接头和配件的圆柱型和非圆柱型预应力混凝土压力管及管用预应力钢的具体要求
英文名称:Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirement for prestressing steel for pipes