Which of the advantages of 3dp technology does not include?

The molding speed is fast, why not use multiple nozzles for the molding nozzle? 3D printing (3DP) is a rapid prototyping technology, which was developed by EmanualSachs of MIT and others. The advantages of 3DP technology do not include high molding speed and the use of multiple nozzles for molding nozzles. EMSachs applied for a 3DP(ThreeDimensionalPrinting) patent in 1989, which is one of the core patents in the field of non-forming material droplet spray forming.