| Item | Torsion springs |
| Material | SS302(AISI302)/ SS304(AISI304)/ SS316(AISI316)/SS301(AISI301) |
| SS631/65Mn(AISI1066)/60Si2Mn(HD2600)/55CrSiA(HD1550)/ | |
| Music wire/C17200/C64200, Etc | |
| Wire diameter | 0.01~10 mm |
| OEM/ODM | Acceptable |
| Finish | Zinc plating, Nickel plating, Anodic oxidation,Black oxided,Electrophoresis |
| Power coating, Gold plating, Silver plating, Tin plating, Paint,Chorme, Phosphate | |
| Dacromet,Oil coating, Copper plating, Sand blasting, Passivation, Polishing,Etc | |
| Sample | 3-7 work days |
| Mass Production | 7-15days |
| Commitment | Refund or reproduction for quality problem |
| Package | poly bag inside,carton box outside |
| Rust proof | Yes |
| Salt Spray Test | 48 hours |




