Advanced fasahar samar da kasa da kasa da kuma high quality
Zhejiang Standard Valve Co., Ltd. (wanda ake kira STA) kamfani ne wanda ya ƙware a cikin samar da bawuloli, kayan aikin bututu, HVAC da sauran samfuran.Kamfanin da aka kafa a shekarar 1984, yana cikin birnin Yuhuan na lardin Zhejiang, babban birnin kasar.Bayan shekaru 40 na ci gaba da haɓaka, ya zama ɗaya daga cikin sanannun sanannun masana'antu.