Zhejiang Benyu Tools Co., Ltd. (igoa muamua Zhejiang Zhongtai Tools), na faavaeina i le 1993, o se polofesa mana meafaigaluega gaosi i Saina. E ala i le sili atu nai lo 27 tausaga o galue malosi ma faifai pea fou, o le kamupani faʻavaeina lelei faiga o R & D, gaosiga, maketiga ma ina ua maeʻa-faʻatauina auaunaga.