A receptacle adapted to receive a disk from a conveyor surface. The receptacle includes a housing adapted to receive a disk from a conveyor surface and a removable hopper. The housing includes a guide member, at least one support member, and a base member. The removable hopper is adapted to receive the disk from the guide member, and includes a spindle attachable to a base, wherein the spindle is adapted to receive a plurality of disks from the guide member.

 
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> Bipolar plate and method of fabricating it

~ 00311