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Version CZ-5 CZ-5B Boosters 4 × (CZ-5-300, 2 × YF-100) 4 × (CZ-5-300, 2 × YF-100) First stage CZ-5-500, 2 × YF-77 CZ-5-500, 2 × YF-77 Second stage CZ-5-HO, 2 × YF-75D — Third stage (optional) Yuanzheng-2 — Thrust (at ground) 10.62 MN 10.62 MN Launch weight 854,500 kg 837,500 kg [34] Height 56.97 m 53.66 m Payload (LEO 200 km) — ~25,000 kg [35] Payload (GTO) 14,000 kg [35] —