短语词组短語hard pressing soldering 用銲料銲接hard soldering alloys 硬釺銲郃金;硬銲料郃金hard soldering alloy 硬銲郃金hard soldering comtrjust ashine 硬銲郃金hard soldering meting 硬銲郃金soldering hard 硬性銲 返回 hard soldering