open relaxed and close smooth red gas support spring
International advanced spay-paint technology.
Nontoxic environment.
Prevent the corrosion and rust effectively 50000 cycle.
Tranquility,smooth,durability.
| Funtion | support/up/down/free stop/double step close |
| Stroke | 90mm |
| Center | 245mm |
| Packing | 100pcs/CTN |
| Main Maerial | pom/iron/copper |
