... welcomed 4.Application:transmission part and machinery 1. Business type: sprocket manufacturer& exporter2. Main market: Southeast Asia, North and South ... America, Europe, Oceania, Middle East, Africa3. Manufacturing method: forged or welded, lathe, hobbing, high frequency quenching,4. Material: C45 ... 90,28B9-76,32B9-76 PackingPlastic bag+plywood case/Pallet sprocket transmission parts