brake spring-153

1. Material: 60SiMnA/50CrVA/55SiCrA alternative
 

2. Heat treatment: general/oil quenching tempering steel
 

3. Wire dia.: 14mm/15mm/16mm alternative
 

4. O.D.: 135mm,136mm, and others alternative
 

5. Free length: 210/220/230mm alternative
 

6. No. of total coils: 4.25/4.5/4.6 alternative
 

7. TSI16949, ISO14001 certified