isaprofessionalcompanymanufacturingseriesproductsofcorrosionresistancebyusingthepatenttechnologyawardedtheSecondPrizeoftheNational

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JiaonanHailiValveCastingCo.,Ltd.islocatedinHuangdaoDistrictwithbeautifullandscapeofseashoreofQingdao.

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ShandongHongtaiScienceandTechnologyCo.,Ltd.-ShandongHongtaiScienceandTechnologyCo.,Ltd.wasfoundedin2004,HongtaiisaprofessionalcompanymanufacturingseriesproductsofcorrosionresistancebyusingthepatenttechnologyawardedtheSecondPrizeoftheNationalScience

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