DIN 30658-1 地下煤气管道接头附加密封材料.第1部分:已密封煤气管道附加密封用塑料薄膜和织物衬套.安全要求和试验 Materials for the subsequent sealing of joints in underground gas mains - Part 1: Plastic foil and textile fibre linings used to seal gaspipes already in place; safety requirements and test...
ISO 11926-1通用和液压传动用联接件 带ISO 725螺纹和O形圈密封的油口和螺纹端头 第1部分:锪孔沟槽中装有O形密封圈的油Connections for general use and fluid power - Ports and stud ends with ISO 725 threads and O-ring sealing - Part 1: Ports with O-ring seal in truncated housing ...
DIN 25432 穿过反应堆安全壳的管道贯穿件 Pipe penetrations through the reactor containment DIN 2559-3 焊缝预加工.第3部分:焊接管道圆周焊缝的内径配合 Preparation of welds; matching of inside diameters for circumferential welds on welded pipes DIN 27202-9 铁路车辆状态.车辆的上层结构和专用设备.第9部分...