Exhibit Profile：
nuts (national standard nuts, flange nuts,thickened nuts, thin nuts, slotted nuts, coal mine nuts, drawn nuts, high strength nuts, non-standard nuts),fastener，tooth pin and retainer,bucket tooth,excavator spare parts,auto parts, net frame parts and valve parts.
nuts (national standard nuts, flange nuts,thickened nuts, thin nuts, slotted nuts, coal mine nuts, drawn nuts, high strength nuts, non-standard nuts),fastener，tooth pin and retainer,bucket tooth,excavator spare parts,auto parts, net frame parts and valve parts.
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