أداة آلة طحن الكرة طحن طبل آلة نوع الرسم التخطيطي. الرسم من آلة طحن . The Garrett green plastic classifier with the 1/2" square holes (#2 mesh) is a great, inexpensive sieve for the beginning panner, while the stainless steel and plastic classifiers from Jobe and Pioneer, with multiple mesh size options (2, 4,