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