GB/T 22517.4-2017体育场地使用要求及检验方法第4部分:合成面层篮球场地国家标准
英文:Technical requirements and test methods for sports fields—Part 4: Synthetic surface for basketball GB/T 22517.4-2017介...
英文:Technical requirements and test methods for sports fields—Part 4: Synthetic surface for basketball GB/T 22517.4-2017介...