JG/T 5057.27-1995
Construction machinery and equipment High strength hexagon nuts,washer faced,style 2-Fine pitch thread
JG/T 5057.28-1995
Construction machinery and equipment High strength hexagon thin nuts-Fine pitch thread
JG/T 5057.8-1995
Construction machinery and equipment high strength bolts with hexagon flange-reduced shank—Type B
JG/T 5057.29-1995
Construction machinery and equipment High strength fasteners
JG/T 5057.31-1995
Construction machinery and equipment High strength plain washers-Normal series
JG/T 5057.32-1995
Construction machinery and equipment High strength plain washers-Smatl series
JG/T 5057.33-1995
Construction machinery and equipment High strength plain washers-Large series
JG/T 5057.34-1995
Construction machinery and equipment High strength square taper washers for 工 section
JG/T 5057.35-1995
Construction machinery and equipment High strength square taper washers for slot section
JG/T 5057.9-1995
Construction machinery and equipment-High strength fasteners
JG/T 5057.9-1995
Construction machinery and equipment-Short high strength fasteners
JG/T 5057.10-1995
High strength screw with hexagon socket cap head
