Sulfonated Asphalt, Modified Starch, Lubricant manufacturer / supplier in China, offering Chemicals Oil Drilling Auxiliary Agent Liquid Defoamer / Anti-Foaming Agent, Drilling Mud Additive Oil Grade Carboxymethyl Cellulose CMC for Oilfield, Drilling Fluid Anti-Collapsing Fluid Loss Agent Potassium Humate Powder and so on.
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