It is an intergarted enterprise speciaizing in selling Bicycle parts and manufacturing the tires & tubes for two wheel industry.
size etrto 16×2.125 57-305 …
size etrto 16×2.125 47-305 …
size etrto 12×1.75 47-203 …
size etrto 12×2.125 57-203 …
size etrto 20×2.125 57-406 …
size etrto 12×2.40 60-203 …
size etrto 20×2.50 67-406 …