Manual equipment for grinding consists of a hard base plate covered beneath by a porous covering and a grinder grating as well as a handle fastened above on the base plate
摘要
<p>In a porous covering (3) there are oblong recesses or slots (4) as well as a delivery opening (5), which all interconnect. A connection piece (8) with a connecting pipe (9) in a base plate (1) fastens over the delivery opening.</p>
