{"id":3924,"date":"2026-04-22T14:33:20","date_gmt":"2026-04-22T06:33:20","guid":{"rendered":"https:\/\/www.mingchifrp.com\/?post_type=product&#038;p=3924"},"modified":"2026-04-24T10:01:31","modified_gmt":"2026-04-24T02:01:31","slug":"30x30x3mm-frp-square-tube","status":"publish","type":"product","link":"https:\/\/www.mingchifrp.com\/fr\/produit\/30x30x3mm-frp-square-tube\/","title":{"rendered":"30x30x3mm FRP Square Tube"},"content":{"rendered":"<h2 style=\"text-align: center;\">Introduction du produit<\/h2>\n<h3>1.30x30x3mm FRP Square Tube Introduction<\/h3>\n<p style=\"text-align: left;\">30x30x3mm FRP Square Tube is a high\u2011strength pultruded fiberglass square tube designed for versatile industrial structural and supporting applications. As a corrosion\u2011proof, lightweight, and long\u2011lasting alternative to steel square tubes, our 30x30x3mm FRP Square Tube provides reliable structural strength, stability, and durability, making it the ideal solution for building frameworks, engineering supports, equipment brackets, and industrial construction projects worldwide.<\/p>\n<h3>2.Key Advantages of Our 30x30x3mm FRP Square Tube<\/h3>\n<ul>\n<li style=\"text-align: left;\"><strong>High Structural Strength &amp; Stability<\/strong>: 30x30x3mm square profile ensures excellent rigidity, load-bearing performance, and structural stability for light to medium-duty structural and support applications.<\/li>\n<li style=\"text-align: left;\"><strong>Superior Corrosion &amp; Chemical Resistance<\/strong>: Resistant to acids, alkalis, saltwater, oil, and UV; no rust, no rot, no painting required, ideal for long\u2011term use in harsh industrial and coastal environments.<\/li>\n<li style=\"text-align: left;\"><strong>Excellent Safety &amp; Non\u2011Conductivity<\/strong>: Non\u2011conductive, fire\u2011retardant optional, safe for use in power construction areas and high\u2011risk industrial zones.<\/li>\n<li style=\"text-align: left;\"><strong>Lightweight &amp; Easy Installation<\/strong>: Much lighter than steel square tubes, lowering transportation and labor costs; can be easily cut, drilled, and assembled on\u2011site without damaging structural integrity.<\/li>\n<li style=\"text-align: left;\"><strong>Low Maintenance &amp; Long Service Life<\/strong>: Minimal upkeep required, service life up to 20+ years, greatly reducing overall lifecycle costs and eliminating regular anti-rust maintenance.<\/li>\n<\/ul>\n<h3>3.Wide Range of Industrial Applications<\/h3>\n<div style=\"text-align: left;\">Our 30x30x3mm FRP Square Tube is widely used in various construction and industrial environments for structural support and framing:<\/div>\n<ul>\n<li style=\"text-align: left;\"><strong>Structural Support &amp; Framing<\/strong>: Building frameworks, equipment supports, handrails, guardrails, and light engineering structures.<\/li>\n<li style=\"text-align: left;\"><strong>Marine &amp; Offshore<\/strong>: Coastal facility components, boat structural parts, dock fittings, and saltwater-resistant supports.<\/li>\n<li style=\"text-align: left;\"><strong>Chemical &amp; Processing Plants<\/strong>: Corrosive area piping frameworks, equipment guards, and workshop structural parts.<\/li>\n<li style=\"text-align: left;\"><strong>Wastewater &amp; Water Treatment<\/strong>: Plant construction parts, tank surrounds, and drainage system components.<\/li>\n<li style=\"text-align: left;\"><strong>Construction &amp; Municipal<\/strong>: Safety barriers, trench supports, building profiles, and public facility structural parts.<\/li>\n<\/ul>\n<h3>4.Technical Specifications (Customizable)<\/h3>\n<ul>\n<li style=\"text-align: left;\"><strong>Material<\/strong>: High-quality unsaturated polyester resin \/ vinyl ester resin reinforced with E-glass fibers<\/li>\n<li style=\"text-align: left;\"><strong>Processus de production<\/strong>: Pultruded<\/li>\n<li style=\"text-align: left;\"><strong>Profile Size<\/strong>: 30x30x3mm (customizable according to engineering requirements)<\/li>\n<li style=\"text-align: left;\"><strong>30x30x3mm FRP Square Tube Fire resistance<\/strong>: Excellent<\/li>\n<li style=\"text-align: left;\"><strong>30x30x3mm FRP Square Tube Load capacity<\/strong>: 4.5\u20136.3 kN\/m<\/li>\n<li style=\"text-align: left;\"><strong>30x30x3mm FRP Square Tube Standard sizes<\/strong>: 3000mm \u2013 6000mm customizable length<\/li>\n<li style=\"text-align: left;\"><strong>30x30x3mm FRP Square Tube Span tables<\/strong>: Average span 1.9 m<\/li>\n<li style=\"text-align: left;\"><strong>30x30x3mm FRP Square Tube Load tables<\/strong>: 4.0\u20135.8 kN\/m at 1.7\u20131.9 m span<\/li>\n<li style=\"text-align: left;\"><strong>30x30x3mm FRP Square Tube Texture<\/strong>: Smooth, gritted anti\u2011slip, concave<\/li>\n<li style=\"text-align: left;\"><strong>Color Options<\/strong>: Yellow, gray, green, orange, custom RAL colors<\/li>\n<li style=\"text-align: left;\"><strong>Mechanical Properties<\/strong>: High impact resistance, fatigue resistance, strong structural stability and load-bearing performance<\/li>\n<li style=\"text-align: left;\"><strong>Certifications<\/strong>: ISO 9001, CE, ASTM standard<\/li>\n<\/ul>\n<h3>5.Why Choose Our 30x30x3mm FRP Square Tube?<\/h3>\n<div style=\"text-align: left;\">As a professional manufacturer of FRP composite products, we produce reliable 30x30x3mm FRP Square Tube that meets strict international quality standards. We support both standard and customized projects with professional technical support, stable production, and competitive pricing.<\/div>\n<div style=\"text-align: left;\"><strong>Contact us today to discuss your 30x30x3mm FRP Square Tube needs and get a free quote!<\/strong><\/div>\n<div>\n<div style=\"padding-left: 80px;\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-729 alignleft\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/9-225x300.jpg\" alt=\"\" width=\"268\" height=\"358\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/9-225x300.jpg 225w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/9-768x1024.jpg 768w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/9-1152x1536.jpg 1152w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/9-1536x2048.jpg 1536w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/9-scaled.jpg 1920w\" sizes=\"(max-width: 268px) 100vw, 268px\" \/> <img decoding=\"async\" class=\"wp-image-436 alignleft\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/Fiberglass-Pultruded-Profile-31-300x300.jpg\" alt=\"\" width=\"357\" height=\"357\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/Fiberglass-Pultruded-Profile-31-300x300.jpg 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/Fiberglass-Pultruded-Profile-31-150x150.jpg 150w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/Fiberglass-Pultruded-Profile-31-768x768.jpg 768w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/03\/Fiberglass-Pultruded-Profile-31.jpg 800w\" sizes=\"(max-width: 357px) 100vw, 357px\" \/><\/div>\n<\/div>\n<h2><\/h2>\n<h2 style=\"text-align: center;\">Cha\u00eene de production<\/h2>\n<div style=\"text-align: left;\">We produce Mingchi 30x30x3mm FRP Square Tube on fully automated pultruded production lines, with stable and consistent process control throughout manufacturing. We implement strict quality inspections from raw material selection to final packaging, ensuring every square tube delivers uniform quality and dependable performance for all kinds of industrial and engineering construction applications.<\/div>\n<div style=\"padding-left: 40px;\"><img decoding=\"async\" class=\"wp-image-2637 alignleft\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-300x190.jpg\" alt=\"\" width=\"337\" height=\"213\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-300x190.jpg 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-1024x648.jpg 1024w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-768x486.jpg 768w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-1536x971.jpg 1536w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-2048x1295.jpg 2048w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/prs3-700x443.jpg 700w\" sizes=\"(max-width: 337px) 100vw, 337px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2591 alignleft\" src=\"http:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-300x191.webp\" alt=\"\" width=\"336\" height=\"214\" srcset=\"https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-300x191.webp 300w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-1024x651.webp 1024w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-768x488.webp 768w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-1536x976.webp 1536w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2-700x445.webp 700w, https:\/\/www.mingchifrp.com\/wp-content\/uploads\/2026\/04\/factory3-2.webp 1571w\" sizes=\"(max-width: 336px) 100vw, 336px\" \/><\/div>","protected":false},"excerpt":{"rendered":"<p>This 30x30x3mm FRP square tube is produced by advanced pultrusion process. It owns great load capacity, corrosion resistance and stable structure, perfectly serving industrial framing, construction support and engineering framework applications.<\/p>","protected":false},"featured_media":3925,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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