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Supply Type
Manufacturer, Supplier
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Preferred Buyer Location
All over the world
The for Testing and Materials has developed different standard & speficiation for Bolt fasteners for variety of uses. Specification for Hardened Steel Washers , carbon steel, steel, washers, weathering steel, Hardened steel washers Standard Specification for Washers, Steel, Plain (Flat), Unhardened for General Use, Standard Specification for Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners.