GB/T 32378-2015
ActiveGlass-reinforced thermosetting plastics (GRP) pipes—Determination of the long-term ultimate bending strain and the long-term ultimate relative ring deflection under wet conditions
玻璃纤维增强热固性塑料(GRP)管 湿态环境下长期极限弯曲应变和长期极限相对环变形的测定
玻璃纤维增强热固性塑料(GRP)管 湿态环境下长期极限弯曲应变和长期极限相对环变形的测定