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