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衡阳
衡阳A sealing and fitting structure for a well body
衡阳Closed physical examination and well inspection
衡阳A New Type of Closed Composite Plastic Inspection Well
衡阳Business license
衡阳High and New Technology Enterprise Certificate
衡阳Low-carbon safe operation of urban and rural water supply systems applicable technology and equipment
衡阳Assembled high-strength composite resin inspection wells
衡阳Development and Application Technology Integration of Assembled High Strength Composite Resin Water Supply Inspection Well
衡阳Quality management system certification
衡阳Occupational Health Management System Certification
衡阳Environmental Management System Certification
衡阳People's Republic of China communications industry standard "underground communications pipeline with preformed composite man (hand) hole
衡阳China Association for the Promotion of International Science and Technology "assembled high-strength composite resin inspection wells
衡阳Group standard for IoT intelligent terminal protection water meter wells
衡阳Standardization Working Committee of China Association for the Promotion of International Science and Technology
衡阳Housing and Construction Department Announcement
衡阳Technical standards for assembled high-strength composite resin water supply wells
衡阳A structural type of manhole cover
衡阳A kind of combined municipal inspection well
衡阳Electricity intelligent manhole cover
衡阳Split type composite inspection well
衡阳A kind of FRP resin inspection well with prefabricated composite seal at the branch pipe opening
衡阳An IoT monitoring well tool
衡阳A polygonal reinforced well
衡阳A composite well with lateral expansion
衡阳A kind of interlocking diagonal reinforcement at the corners
衡阳A reinforcing structure with reinforcing bars and reinforcing blocks
衡阳A deepening tube with grid-like reinforcement
衡阳A staggered reinforcement structure at the corners
衡阳A re-straight fit structure of well body and deepening pipe
衡阳A concave-convex structure docking mating structure applied to a closed composite well
衡阳A mating composition of a ribbed assembly for a split well
衡阳A surface reinforced structure with multiple shape fits on the surface
衡阳A seal fitting structure at the position of well body and top cover
衡阳A reinforced structure with inner and outer diamond fit