Plastic Pulley Block Single is an SSI India product in the Mechanics category. Key specifications include SKU: SSI-PHY-MECH-04. Plastic Pulley of 50 mm Diameter, mounted in plastic frame SSI-PHY-MECH-4.1 Single Sheave, SSI-PHY-MECH-4.2 Double Sheave (Parallel) SSI-PHY-MECH-4.3 Triple Sheave (Parallel). Review the listed material, dimensions, capacity, configuration and compatibility for the