Double-layer self-locking washer
Double-layer tooth plate interlocking self-locking, with outstanding anti-loosening effect in outdoor windy and vibrating environments, corrosion-resistant, suitable for photovoltaic and steel structures.
Double-layer tooth plate interlocking self-locking, with outstanding anti-loosening effect in outdoor windy and vibrating environments, corrosion-resistant, suitable for photovoltaic and steel structures.
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