I te Hakihea 2, 2020, Nanjing Municipal Bureau o te tirotiro me te whakahaere i whakapuaki i nga toa o "Nanjing tino pai te tohu patent" i te tau 2020. Ko te patent tenenga a Nanjing Junli Technology Co., Ltd. "he taputapu parepare waipuke" i toa i te "Patent pai a Nanjing" tohu”.
Ko nga ahuatanga arai whakahuri aunoa hydrodynamic mo te hoahoa whakahurihuri me te aukati i te waipuke kaore he hiko, he kaitiaki kaimahi ranei.
Wā tuku: Feb-03-2021