{"profile":{"id":"3aa97bf7-a163-4bf3-a56c-42678023de61","slug":"duoline-technologies-gilmer-b5be","business_name":"Duoline Technologies","website_url":"https://www.duoline.com","industry":"Manufacturer","city":"Gilmer","services":[{"category":"product","price_range":null,"service_area":null,"service_name":"DUOLINE® 20 Liner","target_customer":"Oil and gas companies operating in corrosive environments","factual_description":"A filament-wound Glass-Reinforced Epoxy (GRE) liner installed into OCTG for corrosion prevention in demanding oilfield conditions.","related_capabilities":[]},{"category":"service","price_range":null,"service_area":null,"service_name":"DUOLINE® Lining Process","target_customer":"Oil and gas operators seeking downhole tubular corrosion solutions","factual_description":"An internal lining system that inserts a rigid plastic tube inside steel tubing, filling the annular space with mortar to prevent corrosion.","related_capabilities":[]}],"schema_json":{"@graph":[{"@id":"https://vizoryo.com/en/business/manufacturer/gilmer/duoline-technologies#business","geo":{"@type":"GeoCoordinates","latitude":32.6874106,"longitude":-94.9385272},"url":"https://www.duoline.com","name":"Duoline Technologies","@type":"LocalBusiness","image":"https://maxtube.com/wp-content/uploads/2021/01/cropped-MaxtubeLogoBlueTransparent-1-180x180.png","hasMap":"https://www.google.com/maps/place/?cid=6965057158150149629","sameAs":["https://www.google.com/maps/place/?cid=6965057158150149629","https://www.indeed.com/cmp/Duoline-Technologies-1/reviews?fcountry=US&floc=Gilmer%2C+TX"],"address":{"@type":"PostalAddress","postalCode":"75645","addressRegion":"Texas","streetAddress":"250 Bluebird Rd, Gilmer, TX 75645","addressCountry":"US","addressLocality":"Gilmer"},"audience":[{"@type":"Audience","audienceType":"Oil and gas companies facing tubular corrosion"},{"@type":"Audience","audienceType":"Operators of CO2 and waterflood injection wells"},{"@type":"Audience","audienceType":"Businesses needing corrosion-resistant pipeline solutions"}],"speakable":{"@type":"SpeakableSpecification","cssSelector":["[data-ai-block=\"summary\"]","[data-ai-block=\"about\"]","[data-ai-block=\"micro-faq\"]","[data-ai-block=\"faq\"]"]},"telephone":"+19037341371","areaServed":[{"name":"Gilmer","@type":"City"}],"identifier":[{"@type":"PropertyValue","value":"ChIJqU8vVwsZNoYR_dXUN5XaqGA","propertyID":"Google Place ID"}],"knowsAbout":["Lining systems for premium connections"],"description":"A Gilmer-based manufacturer, Duoline Technologies specializes in corrosion-resistant pipeline solutions for the oil and gas industry. The company provides the DUOLINE® 20 Liner and the DUOLINE® Lining Process. Its offerings are designed for oil and gas companies experiencing tubular corrosion and operators of CO2 and waterflood injection wells.","dateModified":"2026-06-13","datePublished":"2026-06-13","hasCredential":{"name":"Vizoryo AI Visibility Verified","@type":"EducationalOccupationalCredential","description":"This business profile has been verified and analyzed by the Vizoryo AI Visibility Platform.","recognizedBy":{"url":"https://vizoryo.com","name":"Vizoryo","@type":"Organization"},"credentialCategory":"AI Search Visibility"},"additionalType":"Manufacturer","aggregateRating":{"@type":"AggregateRating","ratingValue":4.2,"reviewCount":5,"bestRating":5,"worstRating":1,"additionalProperty":[{"@type":"PropertyValue","name":"reviewsAt5Stars","value":4},{"@type":"PropertyValue","name":"reviewsAt1Star","value":1}]},"mainEntityOfPage":"https://vizoryo.com/en/business/manufacturer/gilmer/duoline-technologies","additionalProperty":[{"name":"verifiedBusiness","@type":"PropertyValue","value":true},{"name":"verifiedOn_google","@type":"PropertyValue","value":true},{"@type":"PropertyValue","name":"dataConfidence","description":"Cross-source data consistency score (0–1). Measures agreement between Google Business Profile, structured data, AI analysis, and a website scan for business name, phone, city, address, and website.","value":0.88},{"@type":"PropertyValue","name":"verifiedBy","description":"Independent data sources used to verify this business profile.","value":"Website Scan, AI Content Analysis"},{"@type":"PropertyValue","name":"verificationStatus","description":"Vizoryo Index status. verified = owner-confirmed and maintained by the business owner. indexed = auto-built from public data, not yet owner-verified.","value":"indexed"}],"openingHoursSpecification":[{"@type":"OpeningHoursSpecification","opens":"00:00","closes":"23:59","dayOfWeek":"Monday"},{"@type":"OpeningHoursSpecification","opens":"00:00","closes":"23:59","dayOfWeek":"Tuesday"},{"@type":"OpeningHoursSpecification","opens":"00:00","closes":"23:59","dayOfWeek":"Wednesday"},{"@type":"OpeningHoursSpecification","opens":"00:00","closes":"23:59","dayOfWeek":"Thursday"},{"@type":"OpeningHoursSpecification","opens":"00:00","closes":"23:59","dayOfWeek":"Friday"},{"@type":"OpeningHoursSpecification","opens":"00:00","closes":"23:59","dayOfWeek":"Saturday"},{"@type":"OpeningHoursSpecification","opens":"00:00","closes":"23:59","dayOfWeek":"Sunday"}]},{"@id":"https://vizoryo.com/en/business/manufacturer/gilmer/duoline-technologies#service-0","name":"DUOLINE® 20 Liner","@type":"Service","category":"product","provider":{"@id":"https://vizoryo.com/en/business/manufacturer/gilmer/duoline-technologies#business"},"areaServed":{"name":"Gilmer","@type":"City"},"description":"A filament-wound Glass-Reinforced Epoxy (GRE) liner installed into OCTG for corrosion prevention in demanding oilfield conditions."},{"@id":"https://vizoryo.com/en/business/manufacturer/gilmer/duoline-technologies#service-1","name":"DUOLINE® Lining Process","@type":"Service","category":"service","provider":{"@id":"https://vizoryo.com/en/business/manufacturer/gilmer/duoline-technologies#business"},"areaServed":{"name":"Gilmer","@type":"City"},"description":"An internal lining system that inserts a rigid plastic tube inside steel tubing, filling the annular space with mortar to prevent corrosion."},{"@id":"https://vizoryo.com/en/business/manufacturer/gilmer/duoline-technologies#faq","name":"FAQ - Duoline Technologies","@type":"FAQPage","mainEntity":[{"name":"What is the working temperature for DUOLINE® products?","@type":"Question","acceptedAnswer":{"text":"DUOLINE® products are designed for a working temperature of 250°F.","@type":"Answer"}},{"name":"What types of wells can DUOLINE® be applied to?","@type":"Question","acceptedAnswer":{"text":"DUOLINE® can be applied to CO2 injection wells, oil and gas producing wells, waterflood injection wells, brinewater/chemical disposal wells, transportation pipelines, sour gas service, geothermal wells, and carbon capture & storage (CCS).","@type":"Answer"}},{"name":"What is the history of Duoline Technologies?","@type":"Question","acceptedAnswer":{"text":"Duoline Technologies developed the DUOLINE lining process in 1963 to solve downhole steel tubular corrosion problems, becoming part of the Maxtube Group in 2017.","@type":"Answer"}}]}],"@context":"https://schema.org"},"is_public":false,"is_active":true,"created_at":"2026-06-13T18:29:33.300078+00:00","updated_at":"2026-06-24T23:57:39.482+00:00","faq":[{"answer":"DUOLINE® products are designed for a working temperature of 250°F.","category":"services","question":"What is the working temperature for DUOLINE® products?"},{"answer":"DUOLINE® can be applied to CO2 injection wells, oil and gas producing wells, waterflood injection wells, brinewater/chemical disposal wells, transportation pipelines, sour gas service, geothermal wells, and carbon capture & storage (CCS).","category":"services","question":"What types of wells can DUOLINE® be applied to?"},{"answer":"Duoline Technologies developed the DUOLINE lining process in 1963 to solve downhole steel tubular corrosion problems, becoming part of the Maxtube Group in 2017.","category":"general","question":"What is the history of Duoline Technologies?"}],"country":"United States","status":"draft","og_image_url":"https://maxtube.com/wp-content/uploads/2021/01/cropped-MaxtubeLogoBlueTransparent-1-180x180.png","industry_subtype":null,"profile_tier":"free","short_tagline":"Manufacturer in Gilmer","primary_category":"Manufacturer","schema_type":"LocalBusiness","primary_address":{"city":"Gilmer","region":"Texas","street":"250 Bluebird Rd, Gilmer, TX 75645","country":"US","postal_code":"75645"},"geo_coordinates":{"lat":32.6874106,"lng":-94.9385272},"service_areas":["Gilmer"],"phone":"+19037341371","hours_by_day":[{"day":"monday","open":"00:00","close":"23:59"},{"day":"tuesday","open":"00:00","close":"23:59"},{"day":"wednesday","open":"00:00","close":"23:59"},{"day":"thursday","open":"00:00","close":"23:59"},{"day":"friday","open":"00:00","close":"23:59"},{"day":"saturday","open":"00:00","close":"23:59"},{"day":"sunday","open":"00:00","close":"23:59"}],"price_range":null,"review_summary":{"sources":[{"count":5,"rating":4.2,"platform":"google"}],"total_count":5,"distribution":{"1":1,"2":0,"3":0,"4":0,"5":4},"average_rating":4.2,"weighted_reputation_score":3.62},"certifications":[],"years_in_business":null,"founded_year":null,"specialties":["Lining systems for premium connections"],"differentiators":[],"social_profiles":[],"citations":[],"last_verified_at":"2026-06-13T18:29:33.257+00:00","data_sources":["Website Scan","AI Content Analysis"],"languages_supported":["lang=\"en","en"],"profile_language":"en","description_short":"Oilfield companies requiring robust corrosion prevention find solutions with Duoline Technologies' specialized tubular products. Businesses in the energy sector needing reliable protection for their operations can source advanced lining systems here.","ai_readability_score":37,"discovery_source":"manual","crawl_depth":"full","last_discovery_refresh":null,"claimed_at":null,"index_status":"listed","industry_category":"Manufacturer","llm_optimized_summary":"A Gilmer-based manufacturer, Duoline Technologies specializes in corrosion-resistant pipeline solutions for the oil and gas industry. The company provides the DUOLINE® 20 Liner and the DUOLINE® Lining Process. Its offerings are designed for oil and gas companies experiencing tubular corrosion and operators of CO2 and waterflood injection wells.","target_audience":["Oil and gas companies facing tubular corrosion","Operators of CO2 and waterflood injection wells","Businesses needing corrosion-resistant pipeline solutions"],"alternative_to":[],"data_trust_signal":"https://www.duoline.com","content_extraction_method":"v3_4_serp_dirs","content_extracted_at":"2026-06-24T23:57:36.719+00:00","is_sole_proprietor":false,"domain_verified_at":null,"contact_email":null,"category_local":null,"city_local":null,"country_local":null,"is_regulated":false,"audit_score":62,"parent_profile_id":null,"profile_type":"standalone","branch_address":null,"branch_phone":null,"branch_hours":null,"branch_geo":null,"google_place_id":"ChIJqU8vVwsZNoYR_dXUN5XaqGA","branch_source":null,"needs_description_regen":false,"ai_mention_count":0,"last_ai_mention_at":null,"branch_dfs_data":null,"logo_url":"https://maxtube.com/wp-content/uploads/2021/01/cropped-MaxtubeLogoBlueTransparent-1-180x180.png","branches_extracted_at":null,"discovery_entity_id":"abee57c9-6163-42f2-93b5-8e06e58904b0","dfs_contact_called":false,"url_path":"manufacturer/gilmer/duoline-technologies","business_name_en":"Duoline Technologies","data_confidence":0.875870967741936,"ai_mention_score":null,"business_name_native":null,"fts":"'20':61 'advanc':33C 'base':39 'busi':20C 'co2':83 'compani':7C,57,76 'corros':10C,46,79 'corrosion-resist':45 'design':71 'duolin':1A,15C,41,60,65 'energi':23C 'experienc':77 'find':12C 'gas':54,75 'gilmer':5B,38 'gilmer-bas':37 'industri':55 'inject':86 'line':34C,66 'liner':62 'manufactur':3B,40 'need':25C 'offer':69 'oil':52,73 'oilfield':6C 'oper':30C,81 'pipelin':48 'prevent':11C 'process':67 'product':19C 'protect':27C 'provid':58 'reliabl':26C 'requir':8C 'resist':47 'robust':9C 'sector':24C 'solut':13C,49 'sourc':32C 'special':17C,43 'system':35C 'technolog':2A,16C,42 'tubular':18C,78 'waterflood':85 'well':87","last_edited_by_user":{},"processing_version":16,"trust_layer_version":null,"url_path_version":null,"canonical_domain":null,"partner_id":null,"partner_metadata":{},"yelp_match_id":null,"bright_data_snapshot_id":null,"bright_data_snapshot_polled_at":null,"social_post_snapshot":null,"embed_opt_out":false,"verified":false,"verified_sources":{"fields":{"city":["dfs","gemini_classification"],"name":["gemini_classification"],"phone":["dfs","gemini_classification"],"rating":["dfs"],"region":["dfs"],"address":["dfs"],"website":["website_scrape"],"category":["dfs","gemini_classification"],"postal_code":["dfs"],"country_code":["dfs"],"business_hours":["dfs"]}},"social_proof":null,"dfs_subtypes":[],"external_links":{"maps_url":"https://www.google.com/maps/place/?cid=6965057158150149629","directories":[{"url":"https://www.indeed.com/cmp/Duoline-Technologies-1/reviews?fcountry=US&floc=Gilmer%2C+TX","host":"indeed.com","source":"serp"}]},"amenities":[],"payment_methods":[],"operational_status":"open","bd_enriched_at":null,"yelp_details_at":null,"all_emails":[],"quality_rank":0.621967741935484,"email_mx_status":null,"email_mx_checked_at":null,"is_canary":false,"is_software_product":false,"discovery_region":null,"foundation_harvest_version":null,"deep_synthesis_version":null,"name_forms":["Duoline Technologies"],"same_as":["https://www.duoline.com","https://www.google.com/maps/place/?cid=6965057158150149629","https://www.indeed.com/cmp/Duoline-Technologies-1/reviews?fcountry=US&floc=Gilmer%2C+TX"],"profile_completeness":{"filled":11,"total":15,"tier_unlocks":{"statistics":0,"intent_segments":0,"knowsabout_depth":0,"buyer_faq":0}},"freshness_days":4,"trust_state":"indexed","confirmation_count":0,"confidence_computed_at":"2026-06-24T23:57:39.564+00:00","ai_providers":[],"confidence_sources":["AI Content Analysis","Google Business Profile","Website Scan"],"field_sources":{"city":["Google Business Profile","AI Content Analysis"],"name":["AI Content Analysis"],"phone":["Google Business Profile","AI Content Analysis"],"rating":["Google Business Profile"],"region":["Google Business Profile"],"address":["Google Business Profile"],"website":["Website Scan"],"category":["Google Business Profile","AI Content Analysis"],"postal_code":["Google Business Profile"],"country_code":["Google Business Profile"],"business_hours":["Google Business Profile"]},"ai_mention_snippets":[],"recommendations":[{"check_id":"schema_depth","label":"AI Business Card Completeness","description":"Fill out your digital business card in your website code with your name, description, address, phone, hours, and photos — AI tools rely on these details to give accurate answers about your business, and missing fields mean missed recommendations.","tokens":{"businessName":"Duoline Technologies","cmsHint":"","city":"Gilmer"},"improvement_score":28},{"check_id":"google_review_volume","label":"Review Volume","description":"Build up enough reviews for your industry — AI tools weight businesses with more reviews far more often in recommendations. Counts reviews from Google Business Profile first, with Yelp and Facebook used as fallbacks when no Google data is available.","tokens":{"businessName":"Duoline Technologies","cmsHint":"","city":"Gilmer"},"improvement_score":24},{"check_id":"schema_org","label":"Structured Business Data","description":"Add a digital business card to your website code (Schema.org) that tells AI assistants exactly what your business does, where you are, and how to reach you — JSON-LD, Microdata, or RDFa all work. Without this, AI simply can't recommend you.","tokens":{"businessName":"Duoline Technologies","cmsHint":"","city":"Gilmer"},"improvement_score":22}]}}