Railway transport equipment . air brake and air pipes . 25 mm brake - hose connecting nipple 铁路运输设备.空气制动装置和空气导管. 25毫米制动软管连接管头
3.
Tools for moulding - cooling systems for liquid fluids - part 1 : connecting nipples and mounting spaces elements on the mould 模制工具.流体冷却系统.第1部分:模件上的连接螺纹套