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PVC-M ?????? ?????? ?????? ????????
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AD PVC-M ????? ??????? ?????? ?????? ?????? ??????????? ????? ???????? ??????? ??? ?????? ??????? AD PVC-M ??? ??????? ?????? ?????? ?? ???? Hubei AD Building Materials Co....??? ????????
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PPHM ????? ?????? ?????? ??????????????? ??????? ??????? ???? ?????? PPHM ?????? ?????? ?????? ? ???? ???????? ?????? ?????? ??????? ????? ??????? ??????...??? ????????
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PVC-M ????? ??????? ???? ?????? ?????? ?????? ????????Hubei Yuanyuan Building Materials Co., Ltd. (Yuanyuan Pipeline Wuhan) ???? PVC-M ?????? ????? ?????? ?????? ????? ????? ...??? ????????