Railway transport equipment . weight - saving equipment . pipework . removable pipe and nose couplings with toric bearing surface sleeves and tail ends 铁路运输设备.减重设备.管道系统.带复曲支承面套筒和尾端的可拆卸管和前端联结器
2.
Railway transport equipment . weight - saving equipment . pipework . 3 - piece removable pipe and nose couplings with toric bearing surface sleeves and tail ends 铁路运输设备.减重设备.管道系统.带复曲支承面套筒和尾端的三件组合式可拆卸管和前端联结器
