1.special specifications spring  .
2. high quality
The die spring of rectangular section used in punching mould, metal die-casting mould,plastic injection mould and mechanical equipment with rigid structure is our traditional product.It has good steel, high elasticity standard and high precision. Following the Japanese standard (JIS B5012: 1986) and Italy standard (ISO10243), we make out more than ten - serial products for the customers with different specifications.