Sulfonated Asphalt, Modified Starch, Lubricant manufacturer / supplier in China, offering Water Based Drilling Mud Additive Filtrate Reducers API / Modified Starch for Oilfield, Drilling Chemicals Sulfonated Phenolic Resin SMP-I / SMP-II for Oilfield Auxiliary, Oil Grade Chemicals Sodium Carboxymethyl Cellulose CMC for Oilfield Drilling Auxiliary and so on.
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