Powder Metallurgy, Oil Pump Rotor, Gear manufacturer / supplier in China, offering Factory Oil Sintered Brass Bush Bronze Bearing Sint A50 B50, High Quality Bolt and Nut/Machine Bolt /Hex Bolts/ Hex Head Bolts/Hexagon Bolt, Bolt and Nut/Machine Bolt /Hex Bolts/ Hex Head Bolts/Hexagon Bolt and so on.
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