Its double-mould alternative forming way gives it high work efficiency. This machine is safe and reliable, has the advantages of pre-moulding on screw, material-input in a fixed quantity at a specific position all-hydraulic mould-closure with high and low speed, large mould-lock power, smooth mould moving, electric and pneumatic interlocking, small installation space, convenient assembling and disassembling of the moulds. Wooden case.