Product features:

 

1. An open die forming. Higher durability.

 

2. Outside diameter 710 mm diameter 440 mm thickness 105 mm

 

3. Can in fresh water bearing no less than 14.5 kg of iron is up to 24 h long

 

4. Buoyancy: ≧ 14.5 KG (suitable for the weight be 350 catties people use)

 

5. Has anti-aging, not easy bad etc.

 

6. Products according to the national standard production.