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person:("LI liang")
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person:("LI lifang")
Crawler-type long-distance concrete conveying guniting equipment
Anti-falling guardrail for cab of mining heavy dump truck
Anti-collision structure for cab of mining heavy dump truck
Mining heavy-duty dump truck capable of detecting position of truck hopper
Loading alignment anti-rash-entering device for mining heavy-duty dump truck
PBIT circuit for testing on state of multi-path electric detonator
Mining heavy-duty dump truck hopper anti-forgetting-to-descend mechanism
Protective device for field test of hydroelectric generating set
Anti-toppling transfer handcart for high-voltage switch cabinet