hydrogen welding
短语词组
- hydrogen ion welding 氢离子焊
- hydrogen -welding 氢焊
- atomic hydrogen arc welding 氢原子电弧熔接;原子氢焊
- hydrogen atomic welding 原子氢焊接
- atomic -hydrogen arc welding 原子氢焊
- atomic hydrogen -welding electrode 原子氢焊电极
- atomic hydrogen welding electrode 原子氢焊电极
- hydrogen welding electrode 低氢型电焊条
- atomic hydrogen welding apparatus 原子氢焊接机;原子氢焊机 返回 hydrogen welding