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Shijiazhuang Deye ?????? ???????? ?????, Ltd ???? ????????? ???? ??????? ????? ??????? ????. DEYE ????? (Wenzhou) Oil & gas, Petrochemical ?? ?????? ??? ???? API ???? ?????? ?????? ???? ????. DEYE Valve (Tianjin) ?? ???????? ????? ?? ???? ?????? ???? ???? ?????? ?????? ???? ?????. ????? ??? ???? ?? ???? WRAS ????? ?????? ??? ??.
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