Operate machines or equipment which weld, solder, bolt, screw or rivet metal parts together.
操作机器或设备，焊接，螺栓，螺钉或铆钉金属零件。
M6 which referred to one meters screw or bolt thread.
M6 '哪些提到一个米螺丝或螺栓的螺纹。
The valve can be installed in horizontal or vertical. Add seal cushion between two flanges connection and screw down bolt.
本阀可水平安装或垂直安装，安装时两法兰联接中间必须加密封垫片，然后均匀锁紧螺栓。
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