Here are the specifications (mostly) in English.

They say the wheels are 26" but the tires (Covers?) are 700c so I expect the wheels are too. Your fork is a 1" threaded with a compatible stem. I think (I'm not at all certain) that the bottom bracket is an English threaded Shimano cartridge.

Mark Author
Type Cross
Model year 2005
Wheel diameter 26 "
Frame hi-ten
Fork hi-ten
Sorting SHIMANO Altus (24)
Derailleur SHIMANO TY-32
Derailleur SHIMANO Acera
Cartridge SHIMANO HG-30-8I 11-32
Chain SHIMANO IG-31
Cranks SUNTOUR XCC-180 48-38-28
Pedals AUTHOR dural / plastic
Head assembly VP Comp steel 1 "
The stem KALIN steel
Handlebars KALIN steel 40 mm riser
Brake front TEKTRO 55AL
Brake rear TEKTRO 55AL
Sedlovka KALIN steel 25,4
Seat AUTHOR Linea Bi-Gel
Muzzle front QUANDO 36 jr
Mind Rear QUANDO 36 jr
Wires ALEX X-101 36 dir
Covers AUTHOR 700C x 35