Product Feature: 1.Manual control valve, same direction with the spool. Easy control, precise and reliability. 2.Spool type design, excellent sealing performance, compact size, lighter weight, easy repairing 3.Special surface finishing in inner surface. Low friction, low pressure starting, durable 4.Lubrication is not necessary 5.Multi mounting position, easy to fix. Specification: Installation & Usage: 1. Before [...]