Ningbo Zhongli Bolts Manufacturing Co., Ltd. na faavaeina i le 2003, o se gaosiga faʻapolofesa o faʻamaumau malosi-maualuga i faʻamatalaga eseese mo faʻataʻitaʻiga eseese, lea o loʻo aofia ai se vaega o le tusa ma le 10,000 sikuea mita, resitalaina tupe faavae o le 1500,000 RMB, ma le aofa'i fua fa'aletausaga o le 8,000 tone i le tausaga. Ua fa'atuina e le kamupani ni lala fa'atau i itumalo eseese i Saina. I le taimi nei, o oloa a le kamupani e auina atu i fafo i Europa, ISA, Sasaʻe Tutotonu, Aferika, Southeast Asia ma isi itulagi. O loʻo i ai i le kamupani le malosi faʻapitoa faʻapitoa, faʻataʻitaʻiga meafaigaluega atoa ma le tele o masini faʻapipiʻi malulu ma vevela, ina ia tuʻuina atu ia te oe oloa faʻatuatuaina ma maualuga. 1, A490, fa'amau ulu hex DIN931, DIN933, EN14399, DIN6914