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Screw colloid thread syringe
You need to turn it in first time. The screw holes will become smooth.
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You need to turn it in first time. The screw holes will become smooth.
This is a wide mouth mason jar lid for 12 gauge silver rods used for making colloidal silver. I used these 9v battery connectors and alligator clips, but you can get away with only using the clips if you prefer. connectors:…