The main casting is provided with Taiwan owned enterprises,which have rich die-casting experience.
The main components,all with CR-MO steel after forging,quenching and tempering and quenching,after grinding,hydraulic parts all immersed in the high-quality low temperature resistance,in the -20 degree to +40 degree temperature are properly used.
The built-in valve,so that the host receives protection in foreign strong pressure or strong wind environment,prevent damage or leakage.
Fixed point properties accurately,either outwards or inwards to 0 degree positioning,the door is opened to 90 degree,will be accurate and automatic positioning.
This product is running 500000 times,identified by the national technical supervision departments.