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