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