Product description:
◆ In the yellow, blue, red, green, brown die springs, YELLOW ones are the lightest load ones. However, because die springs are well suited for high stress applications, they are also suitable for a variety of other applications as well.
◆ After more than three times of strong pressure treatment, remove the internal stress before the use of the spring, to avoid the spring deformation, shortening, fracture and so on.
◆ Round corner shape of rectangular section, designed by professional engineers, standardized production, reduce the adverse effect of spring in high speed extrusion rebound.

Spring Sizes:
8mm / 0.31-inch Outer Diameter
4mm / 0.16-inch Inner Diameter
20mm / 0.79-inch Free Length

The Loading Grade Of Die Springs:
Yellow: The Lightest Load
Blue: Light Load
Red: Middle Load
Green: Heavy Load
Brown: Extra Heavy Load

Package content:
10pcs ×mould spring (Yellow)
10pcs ×mould spring(Blue)
10pcs ×mould spring(Green)
10pcs ×mould spring(Red)
10pcs ×mould spring(Brown)

Note：there are small parts in the package, for safety, please keep them away from children