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