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Sodium Carboxymethyl Cellulose for Oil Drilling
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Double-sided PCBs with 0.25mm Minimum Drilling Hole
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Truss or button head (self drilling) screw
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DIN 7504P Plat head (self drilling) screw
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DIN 7504N Pan head (self drilling) screw
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DIN 7504K Hex washer head (self drilling) screw
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Self-Drilling Anchors
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bentonite /bentonite for drilling