- Parts for Rockets
- Centering Rings
- BT-70 & BTH-70
- Semroc Centering Rings Plywood BT-50 to BT-70(2pk) SEM-RA-50-70P *
Semroc Centering Ring BT-50 to BT-70 (Set of 2)
Lightweight plywood rings which center a BT-50 series tube inside a BT-70 series tube. Especially useful for making a 24mm engine mount for BT-70 rocket bodies. Requires two per engine mount.