ply rating meaning in Chinese

轮胎层级
线肉层率

Tyres and wheels - tyres - agricultural tractor and machine tyres - specification for classification codes and nomenclature for ply rating marked series tyres
轮胎和车轮.第1部分:轮胎.第4节:农用拖拉机和机械轮胎.第3a小节:层片额定标记系列轮胎的分类代码和术语规范
Tyres and wheels - tyres - agricultural tractor and machine tyres - specification for ply rating marked series tyres for log skidders - agricultural tractor and machine tyres specification for ply rating marked series tyres for logging and forestry service
轮胎和轮子.轮胎.农用拖拉机和农机轮胎.集材拖拉机用标明线网层额定值的系列轮胎规范