1、 Adopt new type double bend arm and four pull rod-clamping structure (won the patent).cross direction; middle mould board is move parallel; the distance between two mold boards is adjusted by the chain wheel.Thus, the clamping force is very strong.
2、The machine frame is produced by the whole complete casting bottom, so that the machine are firm and running stable.
3、Adopt straight slide way, reduce the friction and lengthen the life of the machine.