DEMY (D&M) BEARINGS CO., LTD ke e 'ngoe ea baetsi le barekisi ba li-roller ba etellang pele China. E khethehile ho etsa lipatlisiso le nts'etsopele bakeng sa mefuta e fapaneng ea ho nepahala ho holimo, ho se lerata, ho phela nako e telele. Hape atolose khoebo ho likarolo tsa lithuthuthu le lisebelisoa tsa thepa (Sets'oants'o sa Pele sa Holder, Roller Conveyor Chain, Infra Red Burner).

Fektheri ea rona - Ningbo Giant Bearing Manufacturing Co., Ltd. e na le ISO/TS16949:2009 setifikeiti sa boleng ba tlhahiso ea boleng ba 2009 mme e fumana ka li-sete tse 100 tsa mela ea tlhahiso ea othomathike, likhoele tsa boiketsetso tse nang le matla a tlhahiso ea selemo le selemo a limilione tse 100. Mehato le lisebelisoa tse phethahetseng tsa ho lekanya le lisebelisoa li amohetsoe ke k'hamphani ho netefatsa boleng bo botle.