·Frame:Entire frame structure.
·Hydraulic control:cartridge valve integrated system with reliable performance,less hydraulic shock and long service life.
·Four-corner,eight-face guide with high guide accuracy and strong load resistance.
·New type of seals of oil tank with high reliability and long service life.
·High speed of slide performance and high efficiency.
·Hydraulic pads of undermeath bolster and enough eject rod hole of upper bolster.
·Three operating kinds of hydraulic pads；drawing,ejecting,no ejecting.