Place of Origin : Pudong,China

rubber screw barrel1.Quick DetailsPlace of Origin: Zhejiang,Website:http://www.fuyugroup.net, China (Mainland)Brand Name: FYModel Number: rubber screw barrelBase material: 38CrMoAlA（EN41B）Surface hardness: 900-1000HVSurface roughness: Ra0.4Nitride brittleness: <= Grade 2Surface straightness: 0.015mmNitride depth: 0.5~0.8mmSize: as per customer's drawings2.Production Process（1）material（2）Peeling（3）Heat Treatment（4）Milling（5）wearing（6）Nitriding（7）polishing（8）Measuring（9）packing3. Packaging & De