1). Standard: DIN933/DIN931/Din558/Din601/A325
2). Grade: DIN Gr. 4.6,4.8,5.8,6.8,8.8; Grade2,5
3). Material: Low tensile/ high tensile Carbon steel
4). Surface: Plain, black, ZP, YZP, HDG. etc.
5). Packaging: 25kgs per carton
Competitive Advantages,
1). Top Quality control
2). Competitive Price
3). Various of Design
4). OEM Accepted











