Technical Requirements
1. All the tube sheet groove corner chamfer is R10. 2. Tube sheet processing surface flatness is ≤ 0.15mm. 3. Tube sheet surface and perpendicular to the axis, the vertical degree of tolerance of ≤ 0.5mm. 4. Unless otherwise indicated, the processing surface free of tolerance by GB/T1804-2000 m precision, non-processed surface free by c-level precision tolerance. 5. Remove the burr. |