Ningbo Dingshen Metalworks Co., Ltd. e thehiloe ka 1998, e leng Ningbo China. Joaloka setho sa Mokhatlo oa Chaena oa Fastener, re khethehile ho etsa bolt e matla ea Headed bolt, Thread stud Bolt, Tap end stud, Anchor bolt, Screw, Nut, Washer le likarolo tse entsoeng ka mochine, tse sebelisoang haholo indastering ea Oli & Gas, indasteri ea Petrochemical, Seteishene sa motlakase, Kaho ea Mosebetsi oa Litšepe, Mechini ea Kaho le Thepa ea Motlakase. Maemo a koahela ANSI / ASTM, DIN, ISO, BS, GB, JIS, AS, joalo-joalo.
Ka mor'a lilemo tse fetang leshome boiteko bo sa tsitsang, hona joale k'hamphani ea rona e akaretsa sebaka sa 30,000 sq.m, se nang le sebaka sa mohaho oa 20,000 sq.m. Re na le lisebelisoa tse fetang 200 tsa tlhahiso le lisebelisoa tse 30 tsa tlhahlobo. Re na le mesebetsi e fetang 200, e nang le matla a tlhahiso a fetang 2500Tons ka khoeli.
Khamphani ea rona e netefalitsoe ke ISO 9001: Sistimi ea taolo ea boleng ea 2008. Tse ling tsa lihlahisoa tsa rona li netefalitsoe ke CE le API 20E.
Lihlahisoa tsa rona li rekisitsoe hantle Europe, Amerika Leboea, Amerika Boroa, Bochabela bo Hare le linaha tsa Asia Boroa-bochabela le libaka. Re fumana thoriso e kholo ho tsoa ho bareki ba rona lapeng le kantle ho naha ka lebaka la boleng bo botle ba lihlahisoa tsa rona le mokitlane oa rona o motle.
Ka tsamaiso e tloaelehileng, mekhoa e tsoetseng pele le e hōlileng tsebong, tsamaiso e tšepahalang ea ho laola boleng, le tšebeletso ea boemo bo phahameng, re lumela hore re tla theha bokamoso bo khanyang hammoho.