Embedded nuts 1.Material:copper/brass 2.Color:silver(Nickel-plated) 3.Fully ISO9001:2008 approved 4.Different Performances, nuts,bolts,washers,the material is steel.They can be used in each kind of machinery, equipment, vehicles, ships, railroad, bridge, building, structure, tool, instrument, measuring appliance and thing above and so on.Their characteristic is the variety specification is many, ...