Zhejiang Standard Co., Ltd. (tom qab no hu ua "STA") tau tsim nyob rau xyoo 1984, pib tsom mus rau kev tsim cov khoom siv tsheb thiab cov koob yees duab accessories.Txawm li cas los xij, xyoo 1993, lub tuam txhab pib hloov pauv, tshwj xeeb hauv kev tsim cov yeeb nkab fittings thiab va...
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