Zhejiang Jinhuan Chain Manufacturing Co., Ltd. i hoʻokumu ʻia i ʻOkakopa 1993, kahi ʻoihana R & D a me nā hana kaulahao hana. Uhi ka hale hana i kahi nui o 20000 mau mika kuea, me nā waiwai paʻa o 30 miliona mau yuan, ʻoi aku ma mua o 200 seti o nā pono hana, ʻoi aku ma mua o 100 mau limahana a me kahi hiki ke hana i kēlā me kēia makahiki o 10 miliona mau mika. ʻO ka laikini inoa ʻo "Jinhuan" a me nā kaulahao "Jinhong" i hana ʻia e ka hale hana e hoʻohana i nā kūlana aupuni (GB) a me nā pae honua (ISO). Kūʻai aku nā huahana a puni ka ʻāina a hoʻolilo ʻia i Hikina Hema Asia, ʻAmelika Hema, ʻApelika a me nā wahi ʻē aʻe.