Lousy processing and unsuitable materials - Stay away!

We hber the part together mitr friends for several years in use and annoy us every time you use:
-The Piston has too much play and could be made only after a retrofit halfway usable with an appropriate seal, previously entered more meat back than through the spout.
The lever travel of the crank is at a reasonable use of force by a maximum of 9-3h.
-The Gear in the crank is much too short and fits a maximum of 1/3 on the stub axle - both parts are inferior casting and deform dramatically - am curious to the crank spins times.
-The Cylinder can be set up only with gentle force to the counterparts of the base plate.
The base plate is so sharp that we had to unscrew a piece matching screen printing plate in order to stop that thing somewhere without damage can in fact.
Since the importer should the likely Chinese designers but only once fundamental know-how to teach (be) before such a blatant misconstruction is released on the German market.