Aia kā mākou hui keʻena poʻo ma Qingdao, ʻo ka hui makuahine he ʻoihana aupuni i hoʻokumu ʻia ma 1951, me ʻekolu mau kumu hana e uhi ana i kahi ʻāpana o 500,000 square meters;Loaʻa iā ia ma mua o 20 ka nui o nā mea hana hou i kēia manawa Workshop, e like me ka hoʻolei ʻana, ka mīkini, ka welding, ka mālama ʻana i ka wela a me ka forging, ʻoi aku ma mua o 1,200 sets o nā lako hana, me 10 sets of roller production lines, 4 set of belt conveyor production lines;ʻoi aku ma mua o 400 ʻenehana a me nā limahana loea, me ka ʻoi aku ma mua o 200 waena a me nā ʻenekini kiʻekiʻe, ikaika ʻenehana ikaika, me ka noiʻi ikaika a me ka hoʻomohala ʻana, ka hoʻolālā huahana a me ka hiki ke hana.
