... high-strength torsion components for bolted connections with CE certifation 1.high strength track shoe bolt ... DIN (Germany), GB (China), UNI, JIS (Japan), ISO and TCVN (Vietnam). steel structrue bolt1.Application:railways, ... StationAbroad Maritime Wind Power Station Company part equipment as follows:Hardness: HRC36-42, Tensile ... 25" max.Grade: Metric size: 4.8,5.8,6.8,8.8,10.9, A2,A4 Inch.size: Gr2 ...