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