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| Longhui Science & Technology Development(Tianjin)Co.,Ltd. \r |
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| RO coin-operated automatical machine of selling water, the IC card water machine series , RO household-use water cleaner, automatic straight puring water machine series, and the large-scale water treatment, mineral water equipment, series ,now sincerely calling up the proxy. The product quality of our company have passed the national authentication \r |
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