Qingdao Qingtian muhalli Engineering Co., Ltd ne kasar Sin da kasashen waje hadin gwiwar kamfanin, kafa a 1995, shi ne a cikin gida da farko ƙwararru a cikin muhalli kare kayan aiki samar da kamfanin, shi ne a cikin Qingdao Xingfi saƙa inji saƙa Group, a cikin rukuni karfi samar da R & D fasaha da kuma aiki kayan aiki goyon baya, ya zama daya daga cikin halin yanzu a cikin gida mafi girma muhalli kayayyakin aiki masana'antu tushe. Yawancin aikin bincike na fasaha a fannoni daban-daban na tsaftacewar ruwa, samar da kayan aiki, ƙirar injiniya da gini, da sauransu. Kamfanin's manyan kayayyakin ne daban-daban jerin turbocharged iska mai tafiya, mai narkewa iska mai tafiya, iska mai tafiya, scraper, mai scraper, band matsa tace (mayar da hankali), gada irin (rabin gada irin) scraper mud suction, daban-daban mud dehydrator, mud matsa tace, chlorine dioxide janareta, tace da sauransu da dama iri. Yangtze kamfanin da "ci gaban kimiyya da fasaha, kula da gurɓataccen yanayi" a matsayin manufa, shirye-shiryen gaskiya aiki tare da abokai a duk fannoni na al'umma, don ci gaban kare muhalli kasuwanci, cimma kyakkyawan fatan Blue Sky.