... service CMCCARBOXYMETHYL CELLULOSE SODIUM CMC:Petroleum grade Product features: 1, high degree of substitution, good uniformity of substitution . 2, high transparency, viscosity ... , reduce filteration loss . 6, has excellent performance in drilling of oil . Petroleum grade Product: PAC-LV, PAC-R, CMC-LV, CMC-HV ... (PV)≥3032Yield Point (YP)≥6567Fluid Loss(ml) ≤87.6 OIL DRILLING FlUID additive GRADE CMC