With a special design of gas ballast valve, it can prevent water from being mixed with the pump oil and extend the pump oil's service life.It can remain a high degree of ultimate vacuum even when the gas ballast valve is opened.
Can help yoga practitioners to complete all kinds of balancing actions.Can eliminate muscle tension to strengthen core muscle strength, flexibility to achieve the balance of physical exercise.
Self-developed by Shanghai UB Machinery, 3/4 drive click type torque wrench is a relatively new products, which has large view double window scale as well as push/pull end cap to secure the set torque value from accidental change. Besides, there are squar