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A kind of sampler suitable for powder
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Polymer specially abrasive resistant material
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Novel warehouse wall vibrating air hammer
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Piston for cabin wall vibration air hammer
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Automatic pipe and plate welding equipment and automatic pipe and plate welding method
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Special piston for air cannon
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Anti-rust and wear-resistant cast steel cylinder air cannon capable of rapidly exhausting and manufacturing technology thereof
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Quick exhaust valve of air cannon
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Liquid pressure testing device
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Electric storage bin dredging machine
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External dredging machine for bin
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