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Prevailing torque nut with metal insert is designed in accordance with engineering basic principal. A spring ring is inserted onto a nut, so two pieces are to be formed an integral unit as a safety nut. When the nut is tighten on the bolt or screw... More
Barbed wire /barbed iron wire/galvanized barbed wire/galvanized barbed iron wire/barbed wire fence/barbed fenceBarbed wire is roped by the barbed wire and main wire.Two types divided by surface dispose: Galvanized barbed wire and PVC coated barbed... More