ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
How to make these two plates by using leath machine and drilling process. Plz tell me!!
What difference.. to normal check valve& wafer type check valve
logically. once the valve is closed again, the liquid on the right reduces right?
That's for normal tight shutoff, for check valve, the point is that the fluid doesn't return back.
How to make these two plates by using leath machine and drilling process. Plz tell me!!
What difference.. to normal check valve& wafer type check valve
logically. once the valve is closed again, the liquid on the right reduces right?
That's for normal tight shutoff, for check valve, the point is that the fluid doesn't return back.