I-ZHEJIANG TOSVAL INDUSTRY CO., LTD yasungulwa ngawo-1980 lapho isizukulwane sokuqala siqala ngegama elithi Yuhuan Tongxing Valve Co., Ltd, Imikhiqizo yethu eyinhloko ifaka izinkulungwane zokucaciswa ochungechungeni olungaphezulu kwama-20 olubandakanya i-valve yebhola yethusi, Amamitha Amanzi Amanzi , Igesi yegesi ibhola ne-angle valve, i-bibcock namapayipi okufakwa, njll.