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Screw conveyor with variable screw pitch
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Deviation-rectifying guide mechanism of rectangular pipe jacking machine
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A kind of push-bench originates anti-rotation device
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A kind of dense mud formula rock push-bench of the replaceable cutterhead of pebble layer
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A kind of push pipe electrical-mechanical system based on optical-fibre communications
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A kind of built-in sensors oil cylinder
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A kind of miniature rock push-bench of interchangeable cutterhead and hopper dredger
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A kind of the outer of rock pipe-jacking tunneling machine supplies high pressure water circulation structure
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A kind of push-bench stirs spoil hopper pressure air cushion adjusting device
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A kind of adjustable second-time breakage structure of rock push-bench
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A kind of muddy water automatic closing system of push-bench accumulator independent control
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A kind of push-bench bikini deviation-rectifying system
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Multi-angle high-pressure water injection device for front cabin of pipe jacking machine
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A kind of top pipe deviation correcting control system based on optical fibre gyro and method thereof
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Integral water-stopping lantern ring for concrete pipeline joints
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