Ho ea ka lipalo-palo tse tsoang ho baetsi ba 25 ba ho epolloa ke Mokhatlo oa China Construction Machinery Industry Association, ka September 2021, ho ile ha rekisoa baepolli ba mefuta e fapaneng ea 20085, ho fokotseha ha selemo le selemo ka 22,9%;tseo ho tsona diyuniti tse 13,934 e neng e le tsa lehae, phokotseho ya selemo le selemo ya 38.3%;Diyuniti tse 6151 di ile tsa romelwa kantle ho naha, e leng keketseho ya selemo le selemo ya 79%.

Ho tloha ka Pherekhong ho isa Loetse 2021, ho rekisitsoe baepolli ba lintho tsa khale ba 279,338, keketseho ea selemo le selemo ea 18.1%;hara bona, ba 232,312 e ne e le ba malapeng, e leng keketseho ya selemo le selemo ya 9.16%;47,026 e ile ea romelloa kantle ho naha, keketseho ea selemo le selemo ea 98.5%.

Ho tsoa ho data ho ka bolela hore 'maraka oa machaba oa mechini ea kaho o ntse o eketseha.Ke hobane'ng ha Weitai Excavator Final Drive e ka lula e rekisoa lefatšeng ka bophara.