... for rail bridges etc.3, Various type and sizes of tie plates, clamps, fastenings, gauge plates, tie pads, fish plates and joint bars.4, Rail ... brace, welded shoulders and rail anchors.5, Standard fasteners.6, Nuts ... (China), UNI, JIS (Japan), ISO and TCVN (Vietnam). steel structrue bolt1.Application:railways, highways, bridges, plants,etc. 2. ...