GB/T 39015.2-2020

Road vehicles—Interchangeability of mechanical couplings between tractors and semi-trailers—Part 2: Low-coupling tractors and high-volume semi-trailers

道路车辆 牵引车与半挂车之间机械连接互换性 第2部分：低牵引座半挂牵引车与大容积半挂车