Street Address: 1807, North Tower, Int'l Commercial Bldg., Jia Bin Road
City: Shenzhen
Province: Shenzhen
Country/Region: China
Material:steel
1) made of high quality materials, such as mild carton steel, middle carton steel 2) surface treatment: galvanization, electrophoresis black, golden 3) the amount of rear gear: 34t-56t 4) the amount of front gear: 13t-16t 5) wear-resisting performance reaches the world level