Sulfonated Asphalt, Modified Starch, Lubricant manufacturer / supplier in China, offering Industrial Drilling Chemicals Sodium Humate Flakes for Oilfield Auxiliary Agent, Oilfield Auxiliary Defoamer / Antifoaming Agents / No Foam for Drilling Additives, Oilfield Chemicals Extreme Pressure Lubricant / Ep Lubricant for Drilling Mud and so on.
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