The compound solid propellant used by rocket engine is made of adhesive, oxidizer and some other additives.All of those are casted or extruded then solidified to form the propellant.

• 火箭发动机所使用的复合固体推进剂，是利用胶粘剂、氧化剂和其它添加剂等成分经浇注或挤出后，固化而成的固体药柱。