The customer's product should be combined with the touch screen, and the window should be highly transparent without crystal dots. However, the specified material comes with crystal point! And the fitting is very difficult. When the products provided by friends are in batches, the defective rate always exceeds the standard. Shanben has adopted the automatic fitting technology of the 1000 level dust-free workshop office and the high-temperature deaeration process. It has successfully realized the inspection and acceptance of the crystal point free high permeability window according to the touch screen standard, and solved the technical problems in the industry. It directly provides customers with the finished products combined with touch screen and membrane switch.