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. Surface treatment: Nuture, black, pot galvanizing, coldgalvanizing, oil, parkerising etc.
2. Grade: 4.6, 5.6, 8.8, 10.8 and12.9
3. Dia: from M16 to M60
4. Length: unrestricted
5. Standards for railway products: T B, UIC , AREA, etc.standard components:GB,DIN,ASTM.BS,etc
6. Package: according to customer''s requirement.
Nut and Bolt with CE Certifation
