What are the listed companies of 3d carbon tube micro-nano lithography technology?

Su Dawei, Qi Xin micro-dressed. Three-dimensional carbon tube micro-nano lithography technology listed companies include Su Daweige and Qi Xin micro-packaging. Three-dimensional carbon tube micro-nano lithography technology is a new micro-nano processing technology, which can prepare complex three-dimensional micro-nano structures on the micro scale and has broad application prospects in many fields.