| 技工 | | https://www.alipan.com/s/iuYRMoNRKjN |
| 电工 | | https://www.alipan.com/s/MbgLYgCwuJq |
| 家电 | https://www.alipan.com/s/sLoxd8qKNVB |
| 电工 | https://www.alipan.com/s/yCgmoUykjuo |
| 电工自学·考证·上岗一本通 | https://www.alipan.com/s/WUqRU2Fx6rP |
| 水电工 | | https://www.alipan.com/s/f1C8rPUbccT |