1 Set Handheld Potable Sorting For Mine Handheld Sieve Pan. Cooking Tool Mining Sieve Gold Panning Sifting Strainer Accessories. Green - "low" zone - low level magnetic field. 1.5 to 2.5 milliGauss. - Magnetic field is a portable tool for magnetic field that cannot be seen or touched, an essential tool for many industries.
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