... grease,glass fibers,resin,oil well drilling liquid and cosmetic products,etc.Bentonite For Drilling Mud&Civil EngineeringThe standards for bentonite ... used as lubrication and wall protection slurry for petroleum drilling well,bridge,stake base of construction projects,underground masts ... agent and pipe-freeing agent for the oil well drilling.Daily ChemicalsThe gel series products are spplied broadly to ...