Little-metallic

NAO

The 1st Generation

The 2nd Generation

The 3rd Generation

Widely used in China

Widely used in the developed counties

Will be used more and more

Steel fibre and iron fibre over 20%

Steel fibre around 5-10%

No steel fibre, other fibre less than 3%

The hardness of the steel fibre around 220

The hardness of annealing steel fibre around 60

Contains the soft metal like Cu,Zn,Al.

Gravity: over 2.4g/ cubic centimeter

Gravity: 2.0-2.4g/ cubic centimeter

Gravity: over 1.8-2.0g/ cubic centimeter

High percentage of carbon which will easily blacken the brake disc

Quality mineral which will not blacken the brake disc easily

Imported quality palyoldemide, mineral, which keeps the brake disc brand-new.

Easily groove the brake disc

Groove the brake disc slightly

Will not groove the brake disc

May cause noise

Almost no noise

No noise

Rust easily

Almost no rust

No rust

The driver does not feel comfortable

Feels comfortable and sensitive to brake

Feels comfortable and sensitive to brake

Conduct the heat fast and make the brake fluid hot easily

Well-insulated

Quality insulator

Life: around 30,000km

Life:30000-40000km

Life:40000-50000km

No heavy metal

No heavy metal