Yangdong Co., Ltd., oo hoos yimaada Shiinaha YITUO Group Co., Ltd., waa shirkad wadaag ah oo ku takhasustay cilmi baarista iyo horumarinta matoorada naaftada iyo wax soo saarka qaybaha baabuurta, iyo sidoo kale shirkad heer qaran ah oo heer caalami ah.
Sannadkii 1984-kii, shirkaddu waxay si guul leh u soo saartay 480-kii ugu horreeyay ee mishiinka naaftada ee Shiinaha.Ka dib in ka badan 20 sano oo horumarin ah, hadda waa mid ka mid ah saldhigyada wax soo saarka mishiinka naaftada badan ee dhululubada leh oo leh noocyada ugu badan, caddaymaha iyo miisaanka Shiinaha.Waxa ay awood u leedahay in ay soo saarto 300000 matoorada naaftada kala duwan sannadkii.Waxaa jira in ka badan 20 nooc oo matoorada naaftada ah ee kala duwan ee aasaasiga ah, oo leh dhexroor dhululubo ah 80-110mm, barokaca 1.3-4.3l iyo daboolka korantada ee 10-150kw.Waxaan si guul ah u dhamaystirnay cilmi-baarista iyo horumarinta alaabta matoorka naaftada oo buuxinaysa shuruudaha Euro III iyo Euro IV xeerarka, waxaanan leenahay xuquuqo madax-bannaan oo madax-bannaan oo dhammaystiran.Kor u qaad mashiinka naaftada oo leh awood xoog leh, waxqabad la isku halleyn karo, dhaqaalaha iyo cimri dhererka, gariir hooseeya iyo qaylada hoose, ayaa noqotay awoodda la doorbido ee macaamiisha badan.
Shirkaddu waxay ka gudubtay shahaadada nidaamka tayada caalamiga ah ee ISO9001 iyo shahaadada nidaamka tayada ISO / TS16949.Matoorka yar ee naaftada dhululubada badan leh ayaa helay shahaadada hubinta tayada alaabta qaranka, iyo alaabooyinka qaar ayaa helay shahaadada EPA II ee Maraykanka.