Earth - moving machinery . safety . part 4 : requirements for backhoe loaders 土方机械.安全性.第4部分:反向铲装载机的要求
3.
Earth - moving machinery . hydraulic excavator and backhoe loader boom lowering control device . requirements and tests 土方机械.液压挖掘机和反向铲装载机悬臂降低控制装置.要求和试验
4.
Testing earth - moving machinery - method for the determination of volumetric ratings for hydraulic excavator buckets and backhoe loader buckets 运土机械试验.液压挖掘机铲斗和反向铲装载铲斗容量额定值测定方法