I. Product Overview: Su genuine Q671F pneumatic valve pneumatic valve on the folder in one, is the introduction of Italian technology for the design and development of the localization of a new generation of ultra-short flange distance ball, the ball has a rectangular shape of the core channel, V-shaped and O-shaped. The product has a compact structure, small size, light weight, easy installation, and can be widely used in petroleum, chemical, metallurgy, power, light industry and other fields, oil, water, gas and fluid or fibrous pulp is automatically adjusted or cutting control. Second, characteristics and uses: The Thin ball is absorbed by the domestic Italian technology and design and development of a new type of ultra-short flange distance ball. It uses direct connection actuator connected with a compact, small size, light weight, small friction, hysteresis is small, stable and reliable operation.