China Good quality Custom Made DIN Crane Pulleys with Hot selling

Product Description Custom Made DIN crane Pulleys,With high bearing capacity, high wear resistance and long service lifeSheave features:1) Material: Q235B, Q345B, 35#, 45#, 60#, SSW-QR1, S45C2) Groove surface quench: HRC45-553) Groove surface quench depth: 2mm-2.5mm4)...