Ningbo Dingshen Metalworks Co., Ltd. na faavaeina i le 1998, o loʻo i Ningbo Saina. I le avea ai o se sui o le Chinese Fastener Association, matou te faʻapitoa i le gaosiga o le malosi maualuga Headed bolt, Thread stud Bolt, Tap end stud, Fala taula, Screw, Nut, Washer ma masini faʻapitoa, lea e faʻaaogaina tele i le Suauʻu & Gas alamanuia, Petrochemical industry, Fale Malosiaga, Faiga Uamea, Masini Faufale ma Mea Fa'aeletise. Tulaga e aofia ai ANSI / ASTM, DIN, ISO, BS, GB, JIS, AS, ma isi.
Ina ua mavae le sili atu i le sefulu tausaga le maluelue taumafaiga, o lea ua aofia ai la matou kamupani se eria o le 30,000 sq.m, ma le fauina o le 20,000 sq.m. Ua matou saunia atoatoa i luga o 200 gaosiga meafaigaluega ma 30 suʻega masini. E sili atu i le 200 a matou galuega, faʻatasi ai ma se gaosiga gafatia e sili atu i le 2500Tons i le masina.
O la matou kamupani ua faʻamaonia e ISO 9001: 2008 faiga faʻaleleia lelei. O nisi oa tatou oloa o loʻo faʻamaonia e le CE ma le API 20E.
O a matou oloa ua lelei ona faʻatau atu i Europa, Amerika i Matu, Amerika i Saute, Sasaʻe Tutotonu ma Asia i Sautesasae ma itulagi. Matou te maua le viia sili mai a matou tagata faʻatau i totonu ma fafo ona o le lelei o a matou oloa ma a matou aitalafu lelei.
Faʻatasi ai ma pulega faʻataʻitaʻiga, faʻagasologa faʻasolosolo ma matua matutua, faiga faʻalagolago lelei, ma le maualuga o le auaunaga, matou te talitonu o le a matou fatuina se lumanaʻi lumanaʻi faʻatasi.