--- title: HILONG | M&M Int'l | Certificate of Qualification description: M&M International is a licensed manufacturer of Hilong’s HLST® and HLIST® super high‑torque, double‑shoulder connections. image: https://mm-intl.com/hubfs/HILONG%20Announcement%20(1).png --- [Skip to the main content.](https://mm-intl.com/blog/hilong-mm-intl-certificate-of-qualification#main-content) [![m&m-logo-primary\_yellow and white-01](https://mm-intl.com/hs-fs/hubfs/m%26m-logo-primary_yellow%20and%20white-01.png?width=1500&height=1500&name=m%26m-logo-primary_yellow%20and%20white-01.png "m&m-logo-primary_yellow and white-01")](https://mm-intl.com) [![mm-logo-primary\_fc-1-3](https://mm-intl.com/hs-fs/hubfs/mm-logo-primary_fc-1-3.png?width=1368&height=1218&name=mm-logo-primary_fc-1-3.png "mm-logo-primary_fc-1-3")](https://mm-intl.com) - [About](https://mm-intl.com/about) - [Leadership Team](https://mm-intl.com/about/leadership-team) - [Sales Team](https://mm-intl.com/about/sales-team) - [Services & Capabilities](https://mm-intl.com/services) - [Products](https://mm-intl.com/products) - [Ball Valves](https://mm-intl.com/products/ball-valves) - [Inside Bop Valves](https://mm-intl.com/products/inside-bop-valves) - [Subs](https://mm-intl.com/products/subs) - [Swivels](https://mm-intl.com/products/swivels) - [Resources](https://mm-intl.com/resources) - [Work Instructions & Videos](https://mm-intl.com/resources/work-instructions-and-videos) - [Licenses](https://mm-intl.com/resources/licenses) - [Policies](https://mm-intl.com/resources/policies) - [FAQ](https://mm-intl.com/resources/faq) - [Partners](https://mm-intl.com/partners) - [Product Documentation](https://mm-intl.com/product-documentation) - Learn - [Blog](https://mm-intl.com/blog) - [CNC Machining](https://mm-intl.com/exploring-cnc-machining) - [Valve Manufacturing Process](https://mm-intl.com/exploring-valve-manufacturing-process) - [Careers](https://mm-intl.com/careers) [![Contact](https://no-cache.hubspot.com/cta/default/22100640/4537d7fa-ab4d-470a-98c1-5b62310439e0.png)](https://cta-redirect.hubspot.com/cta/redirect/22100640/4537d7fa-ab4d-470a-98c1-5b62310439e0) Toggle Menu Toggle Menu [![Contact](https://no-cache.hubspot.com/cta/default/22100640/4537d7fa-ab4d-470a-98c1-5b62310439e0.png)](https://cta-redirect.hubspot.com/cta/redirect/22100640/4537d7fa-ab4d-470a-98c1-5b62310439e0) - [About *Toggle Menu*](https://mm-intl.com/about) - [Leadership Team](https://mm-intl.com/about/leadership-team) - [Sales Team](https://mm-intl.com/about/sales-team) - [Services & Capabilities](https://mm-intl.com/services) - [Products *Toggle Menu*](https://mm-intl.com/products) - [Ball Valves](https://mm-intl.com/products/ball-valves) - [Inside Bop Valves](https://mm-intl.com/products/inside-bop-valves) - [Subs](https://mm-intl.com/products/subs) - [Swivels](https://mm-intl.com/products/swivels) - [Resources *Toggle Menu*](https://mm-intl.com/resources) - [Work Instructions & Videos](https://mm-intl.com/resources/work-instructions-and-videos) - [Licenses](https://mm-intl.com/resources/licenses) - [Policies](https://mm-intl.com/resources/policies) - [FAQ](https://mm-intl.com/resources/faq) - [Partners](https://mm-intl.com/partners) - [Product Documentation](https://mm-intl.com/product-documentation) - Learn *Toggle Menu* - [Blog](https://mm-intl.com/blog) - [CNC Machining](https://mm-intl.com/exploring-cnc-machining) - [Valve Manufacturing Process](https://mm-intl.com/exploring-valve-manufacturing-process) - [Careers](https://mm-intl.com/careers) - Example Link - Example Link - Example Link [*Facebook*](https://mm-intl.com/blog/hilong-mm-intl-certificate-of-qualification#0) [*Instagram*](https://mm-intl.com/blog/hilong-mm-intl-certificate-of-qualification#0) [*LinkedIn*](https://mm-intl.com/blog/hilong-mm-intl-certificate-of-qualification#0) [*Twitter*](https://mm-intl.com/blog/hilong-mm-intl-certificate-of-qualification#0) [*Youtube*](https://mm-intl.com/blog/hilong-mm-intl-certificate-of-qualification#0) [*Medium*](https://mm-intl.com/blog/hilong-mm-intl-certificate-of-qualification#0) 2 min read # M&M International Licensed to Machine Hilong HLST® & HLIST® Connections [![Picture of M&M International](https://mm-intl.com/hubfs/_(250%20x%20250%20px)%20(3).png) M&M International](https://mm-intl.com/blog/author/mm-international) Aug 7, 2025, 9:31:21 AM [Certifications](https://mm-intl.com/blog/tag/certifications) ![M&M International Licensed to Machine Hilong HLST® & HLIST® Connections](https://mm-intl.com/hubfs/HILONG%20Announcement%20(1).png) M&M International is proud to announce that it is a [licensed](https://mm-intl.com/resources/licenses) manufacturer of [Hilong’s HLST® and HLIST®](http://hilonggroup.com/en/product/info/chgzg) super high‑torque, double‑shoulder connections. This licensing agreement enhances M&M’s ability to deliver premium performance solutions for today’s most demanding drilling applications. ### **About HLST® and HLIST® Connections** [Hilong’s HLST® (Hilong Super High Torque) and HLIST® (Hilong Improved Super High Torque) connections](http://hilonggroup.com/en/product/info/chgzg) are engineered to exceed industry standards for strength, durability, and performance. These double-shoulder connections offer: - Up to 70% greater torsional strength than standard API connections - Improved fatigue resistance - Optimized internal/external diameters for better hydraulic performance - Advanced thread design for enhanced sealing and make/break efficiency They are ideal for deep wells, extended reach drilling (ERD), horizontal drilling, high-pressure/high-temperature (HPHT) wells, and sour-service environments.   ### **What This Means for Our Customers** By adding HLST® and HLIST® to its [manufacturing capabilities](https://mm-intl.com/services), M&M International offers even greater flexibility and performance to operators seeking advanced connection technology. This expansion aligns with M&M’s commitment to: - Manufacturing excellence - Product reliability - Customer-focused innovation Whether you’re drilling deeper, longer, or under more challenging conditions, M&M can provide Hilong’s most advanced connection technologies—backed by our proven machining quality and service. ### **Why It Matters** Modern drilling operations demand more from every component. The addition of [Hilong HLST® and HLIST® connections](http://hilonggroup.com/en/product/info/chgzg) allows M&M International to support customers looking for: - Higher torque transmission - Reduced connection failures - Improved flow and erosion performance - Better make-and-break performance in the field These benefits translate to reduced downtime, extended tool life, and increased operational efficiency. ### **Learn More** M&M International is accepting orders and inquiries for [Hilong HLST® and HLIST® connections](http://hilonggroup.com/en/product/info/chgzg). For specifications, compatibility questions, or to learn how these solutions fit your next drilling project, [contact](https://mm-intl.com/contact) our team today. ### **A Step Forward in Premium Connection Manufacturing** This licensing agreement marks a major milestone for M&M International. The addition of [Hilong’s HLST® and HLIST®](http://hilonggroup.com/en/product/info/chgzg) expands our premium product offering and positions us to better serve the evolving needs of the energy industry. #### ***Stronger connections. Deeper performance. Delivered by M&M.***   --- ## About M&M International ![\_(250 x 250 px) (3)](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=123&height=123&name=_(250%20x%20250%20px)%20(3).png) M&M International is a family owned and operated original equipment manufacturer in the energy industry.  Since its founding in 1980, M&M has become internationally known in the industry for creating and manufacturing the most efficient, reliable, and user-friendly [well control valve](https://mm-intl.com/products/ball-valves) design in the world, namely, the [CANISTER GUARD®](https://mm-intl.com/products). M&M also manufactures a wide variety of [subs](https://mm-intl.com/products/subs), [inside blowout preventors](https://mm-intl.com/products/inside-bop-valves) (“IBOPs”), [swivels](https://mm-intl.com/products/swivels), surface test trees, offline cementing valves, and other equipment used during drilling, completion, and production operations, both on land and offshore. In addition to our products, we also offer a full spectrum of manufacturing [services](https://mm-intl.com/services) and stand ready to build not only our own designs, but the designs brought to us by our customers and partners. The [M&M Team](https://mm-intl.com/about/leadership-team) is committed to solving the most common, and uncommon, problems associated with the well control sector today. We also put forth great effort assisting our customers in solving problems associated with other aspects of the energy industry. We are a dynamic and customer satisfaction-oriented company that is focused on helping its customers improve on multiple levels, not just with their well control needs. No matter what we are doing for the customer, we deliver extraordinary service that is superior to any of our competitors. - [Tweet](https://twitter.com/share) [![Welcome to the Team! Nicolas Rogozinski, Chief of Engineering Solutions](https://mm-intl.com/hubfs/Welcome%20to%20the%20Team%20%281%29.png)](https://mm-intl.com/blog/welcome-to-the-team-nicolas-rogozinski-chief-of-engineering-solutions) #### [Welcome to the Team! Nicolas Rogozinski, Chief of Engineering Solutions](https://mm-intl.com/blog/welcome-to-the-team-nicolas-rogozinski-chief-of-engineering-solutions) ![Picture of M&M International](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=30&name=_(250%20x%20250%20px)%20(3).png) [M&M International](https://mm-intl.com/blog/author/mm-international): May 13, 2026, 2:41:57 PM We are excited to welcome Nicolas Rogozinski to the M&M team! [News](https://mm-intl.com/blog/tag/news) [Read More](https://mm-intl.com/blog/welcome-to-the-team-nicolas-rogozinski-chief-of-engineering-solutions) [![Recon Oilfield Services: Authorized Repair Facility](https://mm-intl.com/hubfs/Recon%20%281%29.png)](https://mm-intl.com/blog/mm-international-partnership-with-recon-oilfield-services) #### [Recon Oilfield Services: Authorized Repair Facility](https://mm-intl.com/blog/mm-international-partnership-with-recon-oilfield-services) ![Picture of M&M International](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=30&name=_(250%20x%20250%20px)%20(3).png) [M&M International](https://mm-intl.com/blog/author/mm-international): May 11, 2026, 10:27:02 AM M&M International welcomes Recon Oilfield Services, Inc. as its new Authorized Repair Facility in North Dakota. [Partners](https://mm-intl.com/blog/tag/partners) [Authorized Repair Facility](https://mm-intl.com/blog/tag/authorized-repair-facility) [North Dakota](https://mm-intl.com/blog/tag/north-dakota) [Read More](https://mm-intl.com/blog/mm-international-partnership-with-recon-oilfield-services) [![M&M International Now Licensed for API 7V](https://mm-intl.com/hubfs/Untitled%20%28Facebook%20Post%29.png)](https://mm-intl.com/blog/mm-international-now-licensed-for-api-7v) #### [M&M International Now Licensed for API 7V](https://mm-intl.com/blog/mm-international-now-licensed-for-api-7v) ![Picture of M&M International](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=30&name=_(250%20x%20250%20px)%20(3).png) [M&M International](https://mm-intl.com/blog/author/mm-international): Feb 26, 2026, 10:14:56 AM M&M International Now Licensed for API 7V Kelly Valves & IBOPs — A New Era in Well Control Valve Manufacturing [Manufacturing](https://mm-intl.com/blog/tag/manufacturing) [IBOPs](https://mm-intl.com/blog/tag/ibops) [API 7V](https://mm-intl.com/blog/tag/api-7v) [Licenses](https://mm-intl.com/blog/tag/licenses) [Kelly Valve](https://mm-intl.com/blog/tag/kelly-valve) [Read More](https://mm-intl.com/blog/mm-international-now-licensed-for-api-7v) [![M&M Int'l Expands DP-Master Manufacturing License with Two New Connections](https://mm-intl.com/hubfs/DPM%20Announcement-1.png)](https://mm-intl.com/blog/dp-master-manufacturing-license-with-two-new-connections) #### [M&M Int'l Expands DP-Master Manufacturing License with Two New Connections](https://mm-intl.com/blog/dp-master-manufacturing-license-with-two-new-connections) ![Picture of M&M International](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=30&name=_(250%20x%20250%20px)%20(3).png) [M&M International](https://mm-intl.com/blog/author/mm-international) : Feb 7, 2025, 8:40:58 AM M&M International is proud to announce an expansion of its DP-Master Manufacturing License with the addition of two cutting-edge connections: ... [Certifications](https://mm-intl.com/blog/tag/certifications) [Read More](https://mm-intl.com/blog/dp-master-manufacturing-license-with-two-new-connections) [![M&M Int'l Earns Certificate of Qualification for DP-Master’s Connections](https://mm-intl.com/hubfs/DPM%20Announcement.png)](https://mm-intl.com/blog/dp-master-connections) #### [M&M Int'l Earns Certificate of Qualification for DP-Master’s Connections](https://mm-intl.com/blog/dp-master-connections) ![Picture of M&M International](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=30&name=_(250%20x%20250%20px)%20(3).png) [M&M International](https://mm-intl.com/blog/author/mm-international) : Feb 12, 2024, 9:37:59 AM We are thrilled to announce that M&M International, LLC has been awarded a Certificate of Qualification to Manufacture DP-Master Manufacturing’s... [Certifications](https://mm-intl.com/blog/tag/certifications) [Read More](https://mm-intl.com/blog/dp-master-connections) [![Innovations in Drill Stem Safety Valves](https://mm-intl.com/hubfs/Featured%20Images/Blog%20Drill%20Stem%20Safety%20Valves.png)](https://mm-intl.com/blog/innovations-in-drill-stem-safety-valves) #### [Innovations in Drill Stem Safety Valves](https://mm-intl.com/blog/innovations-in-drill-stem-safety-valves) ![Picture of M&M International](https://mm-intl.com/hs-fs/hubfs/_(250%20x%20250%20px)%20(3).png?width=30&name=_(250%20x%20250%20px)%20(3).png) [M&M International](https://mm-intl.com/blog/author/mm-international) : Dec 3, 2024, 5:35:00 PM In the high-stakes world of oil and gas drilling, operational safety is paramount. Drill Stem Safety Valves play a critical role in ensuring the... [Oil & Gas](https://mm-intl.com/blog/tag/oil-gas) [Top Drive Safety Valves](https://mm-intl.com/blog/tag/top-drive-safety-valves) [Ball Valves](https://mm-intl.com/blog/tag/ball-valves) [Manufacturing](https://mm-intl.com/blog/tag/manufacturing) [Engineering](https://mm-intl.com/blog/tag/engineering) [CANISTER GUARD®](https://mm-intl.com/blog/tag/canister-guard) [Read More](https://mm-intl.com/blog/innovations-in-drill-stem-safety-valves) [![m&m-logo-primary\_yellow and white-01](https://mm-intl.com/hs-fs/hubfs/m%26m-logo-primary_yellow%20and%20white-01.png?width=150&height=150&name=m%26m-logo-primary_yellow%20and%20white-01.png)](https://22100640.hs-sites.com/home-mm-international)   - [Policies](https://mm-intl.com/resources/policies) - [Licenses](https://mm-intl.com/resources/licenses) - [FAQ](https://mm-intl.com/resources/faq) - [Careers](https://mm-intl.com/careers) © 2026 M&M International [*LinkedIn*](https://www.linkedin.com/company/m%26m-international-llc/)[*YouTube*](https://www.youtube.com/channel/UChmuVsaBJTb373CKC14NqxQ) *Return to Top* ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "M&M International", "url" : "https://mm-intl.com/blog/author/mm-international" }, "dateModified" : "2025-08-07T14:31:21.688Z", "datePublished" : "2025-08-07T14:31:21.000Z", "headline" : "HILONG | M&M Int'l | Certificate of Qualification", "image" : [ "https://mm-intl.com/hubfs/HILONG%20Announcement%20(1).png" ], "mainEntityOfPage" : { "@id" : "https://mm-intl.com/blog/hilong-mm-intl-certificate-of-qualification", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://mm-intl.com/hubfs/mm-logo-primary_fc-1.png" }, "name" : "M&M International" } } ```