ʻenehana hana kiʻekiʻe o ka honua a me ke ʻano kiʻekiʻe
ʻO Zhejiang Standard Valve Co., Ltd. (ma hope aku i kapaʻiaʻo STA) he hui kūikawā i ka hanaʻana i nā valves, nā paipu paipu, HVAC a me nā huahana'ē aʻe.Hoʻokumu ʻia ma 1984, aia ka hui ma Yuhuan City, Zhejiang Province, ke kapikala o nā valves.Ma hope o 40 mau makahiki o ka hoʻomohala ʻana a me ka ulu ʻana, ua lilo ia i hoʻokahi o nā hōʻailona kaulana i ka ʻoihana like.