Applicable for use in the production of: Daily use and accessories for electronic products, also apply to the silica products with tessera, such as silica insole, silica watch band, and silica keypad for mobile and etc. Mail features: 1. Structural components are used hydraulic pressure system instead of straight conventional mode-locking hinge structure, greatly reducing the mainframe space. 2. Direct pressure and no-step clamping, less noise and pollution and long life. 3. advanced integrated control adopted on the mainframe, making every parameter d