Re hlahisa Asu ea Maintenance, sehlahisoa sa morao-rao sa khase ea indasteri se tlisoang ho uena ke Shanghai Lianfeng Gas Co., Ltd., moetsi ea ka sehloohong, mofani oa thepa le feme ea thepa ea khase Chaena. Asu ea rona ea Maintenance e etselitsoe ho fana ka lits'ebeletso tse nepahetseng le tse tšepahalang tsa tlhokomelo bakeng sa lisebelisoa tsa hau tsa karohano ea moea (ASU), ho netefatsa ts'ebetso e nepahetseng le bophelo bo bolelele. Ka boiphihlelo le boiphihlelo ba lilemo indastering ea khase, Shanghai Lianfeng Gas Co., Ltd. e ikemiselitse ho fana ka litharollo tsa boleng bo holimo bakeng sa litlhoko tsa khase ea indasteri ea bareki ba rona. Asu ea rona ea Tlhokomelo e entsoe ka makhethe ebile e entsoe ho fihlela litekanyetso tse phahameng ka ho fetisisa, e fana ka liphetho tse holimo le tlhokomelo e theko e tlaase bakeng sa lisebelisoa tsa hau tsa ASU. Re utloisisa bohlokoa ba ho boloka ASU ea hau e sebetsa hantle, ke ka lebaka leo sehlahisoa sa rona se etselitsoeng ho fana ka tšehetso e felletseng ea tlhokomelo le ho fokotsa nako ea ho theoha. Tšepa Shanghai Lianfeng Gas Co., Ltd. e le mohloli oa hau oa ho fumana tharollo e tšepahalang ea khase, 'me u lumelle Maintenance Asu ea rona ho ntlafatsa ts'ebetso le bophelo bo bolelele ba lisebelisoa tsa hau tsa ASU.