强热固性塑料(GRP)管|沙特标准|SASO-ISO-7685
Plastics piping systems – Glass-reinforced thermosetting plastics (GRP) pipes -Determination of initial specific ring stiffness
塑料管道系统.玻璃增强热固性塑料(GRP)管.初始比环刚度的测定
Technical Regulation for Building Materials Part:5Pipesusedin Water,Electricity and Gas Networks