This torsion spring is for remote controlled garage. The material we use is as our customer¡¯s requirement, such as 55CrSi, 60Si2Mn, 72B, 82B and so on.
Product Feature Best selective material£¬best approved quality£¬cheapest reasonable price.
Product Specification/Models we can produce all kinds of sizes for this kind of spring after received customer¡¯s drawing or sample.