2 cavities of crate mould high speed injection Advanced structure for 4 inner angle lift Fully automatic ejection system. Optimal cooling system and advanced air venting system. interchangeable inserts for different crate design in one mould ideal hot runner system for recycle material long last mould life high speed injection A common design crate mould will have flash after one year running. Sino design crate moulds will give you a solution for that. The flash adjustable system can help you avoid flash through 5 years production.