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     Carboxymethyl cellulose series(high... Detail
     Polymer mud Detail
     Drilling fluid used zwitter-ion str Detail
     K-PAM Detail
     Drilling fluid used coating agent P... Detail
     Drilling fluid used zwitterionic po Detail
     common use polymer filtrate reducer Detail
     High temperature resistant and salt Detail
     Drilling fluid used polymer latex H Detail
     Drilling fluid used MMH dry powder Detail

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