1.The internal thread of the interface is clear, the connection is tight, and it is not easy to leak air, which is convenient to use. 2.Suitable for semiconductor industry, printing tension control, welding, automation control, automotive engine, and other industries. 3.The inner wall is smooth and polished, no burrs, low frictional resistance, and low starting air pressure. 4.Large effective flow area, small pressure loss, light reversing, easy to operate, precise adjustment without blocking., Manufacturer: MJINA