Railway transport equipment . industrial wagons . plug for standard 50 mm air coupling 铁路运输设备.工业货车.标准直径毫米空气连接器的插塞
2.
Railway transport equipment . industrial wagons . alternatives for fitting standard 50 mm air coupling 铁路运输设备.工业货车.安装标准直径毫米空气连接器的选用装置
3.
Methods for determination of physical properties of tobacco and tobacco products - nominal diameter of cigarettes and filter rods using a laser beam measuring apparatus 烟草和烟草制品物理特性测定方法.第2部分:用激光束测量仪器测定卷烟和滤嘴标准直径