Marshin Drive Chain 420x82 links, 41 internal and 41 external links. Marshin parts are often interchangeable with other Chinese manufacturers parts/or fit other brands machines. This should fit the following other machines Yamama PW50-PW80, Peewee80, G50T-G80T, Coyote 80, Jianshe 80, Loncin 80, & 50PY-80PY.
These are new Chains from an assembly line operation. Several have a few small scratches and markings just from shelf wear and normal handling.
Surplus stock and once these parts are gone they're gone. Marshin doesn't seem to be around any more!
Thanks for your interest and please feel free to ask an questions you may have!