The price of laser cutting die formed at this time may be higher than the estimate or lower than the estimate. When the price of laser die negotiated is lower than the guaranteed price, it is necessary to re-submit the modification of laser cutting die requirements, conditions, plans, etc. in order to reduce the cost of laser die. After re-evaluation, laser cutting die price contract is signed. Laser die contract should not cater to customers with a low price or even a loss price. Instead, they should achieve high quality, and ensure the accuracy and lifespan of laser cutting die in the first place. Pursuing lower price of laser blades, it is difficult to ensure the quality, accuracy and lifespan of laser dies.