Handwheel Inner shape: hex, squa and round an so on. Material: Nodular cast iron Specification as follow: Diameter (mm) ModelCDEFGHI100Light100±2361316445Weight100±1381518556120Light120±24313164.545Weight120±1451518656140Light140±2481617556Weight140±15120206.578180Light180±2541918545Weight180±15721216.55.56200Light200±35618225.54.55.5Weight200±160212475.55.5224Light224±4.56218255.54.55.5Weight224±4.568212775.56250Light250±36521255.54.55Weight250±1.568222585.55.5280Light280±3.5652128.55.55.55Weight280±2752330886315Light315±3652028.55.54.56Weight315±2752230867355Light355±4802128.55.54.56Weight355±3902330867.5400Light400±5722331767Weight400±39725239811450Light450±6882632888Weight450±31022934111112500Light500±7942833889Weight500±31043335121214 GLKM4443674574436655442478264433564444.55.5466.56.55.554.53.5487.5455.54.55.5466.56.55.55655.57867556.5576.56.56.5556576.576.56785.58101277710689138781161010158 More pictures: package: bags or cartons. Can be on your requrie.