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Hose joint fitting
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Directional control valve
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Fastening device
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Four-way valve
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Pipe insert-fitting device and method thereof
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Flexible pipe joint system
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Pipe coupling
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Attaching flange to tube joint
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Connecting method between hose and joint fitting
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Manufacture of flexible tube
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Manufacture of fitting with flange
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Four-way valve
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Manufacture of joint for tube having flange
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Pipe joint
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Method for repairing piping for cooling blast furnace and coupling member for repairing
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Piping joint
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Piping joint
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Valve unit for air-conditioner piping
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Method of joining joint fitting and tubular member
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