High Precision Solder Paste Screw Valve with Rotating Tip Collar Option Liquid Dispensing Control Valve for SMT PCB Assembly Product Introduction In the high-stakes environment of Surface Mount Technology (SMT) and semiconductor manufacturing, precise solder paste application is the foundation of reliable electronic assemblies. The HS-2000S and HS-2000R Solder Paste Screw Valves are state-of-the-art, positive displacement dispensing solutions engineered specifically to handle