Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Technology | Moving Parts | Room Temperature | Flammable | Toxic Materials | In production | Rare metals |
| --- | --- | --- | --- | --- | --- | --- |
| flow | Yes | Yes | No | Yes | No | No |
| liquid metal | No | No | Yes | No | No | No |
| Sodium-Ion | No | No | Yes | No | No | No |
| Lead-Acid | No | Yes | No | Yes | Yes | No |
| Sodium-sulfur batteries | No | No | No | Yes | Yes | No |
| Ni-Cd | No | Yes | No | Yes | Yes | Yes |
| Lithium-ion | No | Yes | Yes | No | Yes | No |
Question:
What are the moving parts of lead-acid?
Answer:
No