SPROCKET SPROCKET 제품명 SPROCKET 규격 작업내용 SPROCKET MANUFACTURE 목록으로 상세내용 1. Manufacturing Mold For Sprocket 2. Casting 3. Rough Lathe Work 4. Teeth-Shaping Work of Sprocket 5. Induction Heat Treatment 6. Fine Lathe Work 7. Hole & Tap Hole Boring Work 8. Key Hole Slotter Work 9. Rust control, Painting, and Packaging