ʻO Ningbo Zhongli Bolts Manufacturing Co., Ltd. i hoʻokumu ʻia i ka makahiki 2003, he mea hana ʻoihana o nā mea hoʻopaʻa ikaika kiʻekiʻe i nā kikoʻī like ʻole no nā hiʻohiʻona like ʻole, e uhi ana i kahi wahi o 10,000 square meters, kākau ʻia ke kapikala o 1500,000 RMB, me ka huina hoonui makahiki o 8,000 tona i ka makahiki. Ua hoʻonohonoho ka hui i kekahi mau lālā kūʻai ma nā panalāʻau like ʻole ma Kina. I kēia manawa, lawe ʻia nā huahana o ka hui i ʻEulopa, USA, Middle East, Africa, Southeast Asia a me nā wahi ʻē aʻe. Loaʻa i ka hui ka mana ʻenehana ikaika, nā lako hoʻāʻo piha a me nā ʻano ʻokoʻa piha piha piha i nā mīkini anu a me nā poʻo wela wela, i mea e hāʻawi iā ʻoe i nā huahana hilinaʻi a kiʻekiʻe. 1, A490, nā kī poʻo hex DIN931, DIN933, EN14399, DIN6914