Used on machinery and equipment parts, the material is ¢ 2mm carbon
steel spring steel wire, stereotypes after the wound into type, the
length of finished product is **3.5mm, white zinc surface
coated.
Technical Requirements:
1) Total number of coils: *9.5.
2) Number of active coils: *7.5.
3) Direction of rotation: right-handed.
4) Diameter: *0.5.
5) white zinc surface coated.
