Rock Crusher Gold Prospecting Heavy Duty Frit Maker Glass
3. Put rock into tube to crush. 4. Inset plunger into tube, and drop to the bottom. 5. Lift plunger to top of tube push down with some force to hit the rock. Repeat as necessary. Our Yoursme product is 2nd to none, we aim to provide efficient and worry-free service for our customer,
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