研磨和层叠
Grind and layer
以上为机器翻译结果，长、整句建议使用 人工翻译 。
阀座环较长，并且是密封焊接的，能够补偿温度波动。阀座面用钨铬钴合金6硬化， 研磨和层叠为镜面光洁度。
Seat rings are long to compensate for temperature fluctuations and are seal - welded. seating faces are hardfaced with stellite 6, ground and lapped to mirror finish.
youdao
应用推荐
模块上移
模块下移
不移动