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Single-row pipeline type prefabricated and assembled underground sewage treatment plant
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Underground spliced two-in-one MBR reactor
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Cylindrical underground spliced horizontal flow sedimentation tank
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Prefabricated membrane biological reaction tank for sewage treatment
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Prefabricated grating well
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Prefabricated reaction tank for biological contact oxidation for sewage pretreatment
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Prefabricated tank for sewage pretreatment
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Modularized underground sewage treating system based on cylindrical precast element
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Lined cylinder type concrete pipe provided with pipe base
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Settlement-preventing pipe jacking
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Sedimentation-prevention type prestressing jacking pipe
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Reinforced concrete pipe provided with prestressed pipe base
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Steel socket reinforced concrete pipe with pipe base
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Lined cylinder type concrete pipe provided with prestressed pipe base
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Mine movable tube type escape capsule
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Connecting and fixing structure for pipeline socket
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Thin-wall steel fiber reinforced concrete pipe
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Thin-walled steel fiber concrete pipe
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Steel fiber reinforced concrete pipe with ribbed thin wall
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Prestress high-pressure steel tube with high rotproofness
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