Site na Nọvemba 2 ruo 4, 2020, ọgbakọ kwa afọ nke alaka igwe na-ebugharị ụwa, CCMA, nwere isiokwu nke “Nduzi teknụzụ · Green na ntụkwasị obi · Iji ọgụgụ isi merie ọdịnihu” maka 2020, mere na Jining, Shandong.Dị ka a ngalaba-ahazi, Shantui Construction Machinery Co., Ltd. ulo oru mbụ dị ọcha electric bulldozer n'ụwa na mbụ unmanned bulldozer na China on November 4. The ọhụrụ nwere ọgụgụ isi ngwaahịa bụ ndụ ihe àmà nke ọhụrụ rụzuru na mgbanwe na ọgụgụ isi n'ichepụta. !