| 31030 | Beds (mattress and mattress support) (manufacture) |
| 31030 | Box spring mattress (manufacture) |
| 31030 | Cot mattress (manufacture) |
| 31030 | Divan bed (mattress and mattress support) (manufacture) |
| 31030 | Interior sprung mattress (manufacture) |
| 31030 | Mattress base (manufacture) |
| 31030 | Mattress made of plastic foam (manufacture) |
| 31030 | Mattress made of sponge (manufacture) |
| 31030 | Mattress support made of metal (manufacture) |
| 31030 | Spring wire mattress (manufacture) |
| 31030 | Upholstered base for mattress (manufacture) |
| 31030 | |