It is an intergarted enterprise speciaizing in selling Bicycle parts and manufacturing the tires & tubes for two wheel industry.
size etrto 20×1.75 47-406 …
size etrto 24×1 3/8 37-540 …
size etrto 24×1.75 47-507 …
size etrto 28×1 1/2 40-635 …
size etrto 24×1.50 40-507 …