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นี่คือเสียงตอบรับจากลูกค้าของเรา ขอขอบคุณ บริษัท โพส แอนด์ พรีคาส ที่ให้ความเชื่อมั่นและไว้วางใจผลิตภัณฑ์ของ บริษัท สยามลวดเหล็กฯ มายาวนานกว่า 20 ปี
08-07-2025
SIW plays a key role in supplying high-quality materials for Bang Khun Thian – Ban Phaeo Expressway Project, which is currently under construction. We are committed to using certified raw materials and products, backed by stringent quality control processes, to ensure the expressway’s structure is strong, durable, and safe—meeting all project requirements. Additionally, SIW works closely with the project team to ensure smooth and timely deliveries, fully supporting the project’s success.
03-09-2025
SIW ranks 7th globally and is the only EPD-certified high-strength steel wire manufacturer in Southeast Asia. With a carbon emission value of only 2.19 kg CO₂ eq. per unit of PC StrandSIW supports green building, reduces carbon emissions, and saves energy —a step forward toward a more sustainable future.
30-08-2024
Why Choose SIW - Testing Service Center for PC Wire and PC Strand Testing?✔️Convenient, Fast, and Cost-Effective✔️ISO/IEC 17025 Certified by NATA (National Association of Testing Authorities, Australia)✔️Modern, High-Efficiency Equipment with Over 99.95% Accuracy✔️Compliant with Standards of Over 70 Countries, Including TIS, ASTM, JIS, and MoreService Information:1. Fatigue Testing Machine-Brand: Zwick Roell, Model: HA500-Testing Standards Supported: AS/NZS 4672.1, AS/NZS 4672.2, BS 5896, LNEC E 542, LNEC E 453, ISO 15630 Part 3, TIS 95-2540, TIS 420-2540-PC Wire: Maximum Load Capacity of 500 kN, Supports Sample -Diameters of 5 – 22 mm-PC Strand: Maximum Load Capacity of 500 kN, Supports Sample -Diameters of 5 – 22 mm-Deformed Bar: Maximum Load Capacity of 500 kN, Supports Sample Diameters of 5 – 40 mmRelaxation Testing Machine2. Testing Standards Supported: AS/NZS 4672.1, AS/NZS 4672.2, ASTM A416/A416M, ASTM A421/A421M, ASTM A881, BS 5896, ISO 15630-3, JIS G3536, TIS 95-2540, TIS 420-2540-PC Wire: Maximum Load Capacity of 300 kN, Supports Sample Diameters of 4 – 9 mm-PC Strand: Maximum Load Capacity of 500 kN, Supports Sample Diameters of 9.3 – 18.0 mm Contact Us: >>Click<<
15-05-2025
“ผนังร้าวจากแผ่นดินไหวยังไม่พอ…ฝนตกยิ่งน้ำรั่วซึม” หลายพื้นที่เพิ่งเจอแรงสั่นสะเทือนจากแผ่นดินไหว แล้วก็เริ่มพบว่า “ผนังรั่วซึม” เมื่อฝนตกตามมา หากเจอแบบนี้ อย่าเพิ่งตกใจ เราขอแนะนำวิธีแก้เร่งด่วนเบื้องต้นที่คุณทำได้เอง: 1. หาต้นตอรอยร้าว – ส่องให้ดีว่ารั่วมาจุดไหน แนวร้าวแนวตั้ง/เฉียง หรือแค่ผิวปูน 2. ทำความสะอาดรอยร้าว – ใช้แปรงหรือผ้าชุบน้ำ เช็ดคราบฝุ่นและสิ่งสกปรก 3. อุดด้วยซิลิโคนหรือซีเมนต์กันซึม – แบบสำเร็จรูป หาซื้อได้ตามร้านวัสดุก่อสร้าง ใช้งานง่าย 4. ปิดทับด้วยเทปกันซึม/ฟิล์มกันน้ำ (ชั่วคราว) – ถ้าไม่มีเวลา ให้ปิดกันน้ำเข้าไว้ก่อน 5. หลีกเลี่ยงการทาสีหรือฉาบทับทันที – เพราะจะดักความชื้นไว้ ทำให้เชื้อราขึ้นง่าย แต่ทั้งหมดนี้เป็นแค่ “มาตรการชั่วคราว” เพื่อรอให้โครงสร้างนิ่งแล้วค่อยซ่อมถาวร โดยอาจต้องปรึกษาวิศวกรหรือตรวจสอบความปลอดภัยของโครงสร้างก่อน อย่าปล่อยให้รอยร้าวกลายเป็นปัญหาใหญ่ในอนาคต **ทั้งนี้ทั้งนั้นขึ้นอยู่กับขนาดรอยร้าว #รอยรั่วหลังแผ่นดินไหว #บ้านรั่วทำไงดี #กันซึมDIY #วิธีแก้น้ำซึมเร่งด่วน #ปลอดภัยไว้ก่อน
29-04-2025
Another project that uses SIW's prestressed steel wire (PC Strand) is the Motorway M6 in Thailand.hashtag#SIW ’s prestressed steel wire (PC Strand) is used in major projects around the world, certified by many certificates with sales in over 70 countries. It is also an environmentally conscious product, made from raw wire materials primarily composed of recycled materials.hashtag#expressway hashtag#motorway
08-10-2025
SIW manufactures high-quality products in compliance with international standards.We are committed to delivering premium products and services, and have been certified with ISO 9001, 45001, 14001, 50001, 27001, NATA, and ISO/IEC 17025 —covering quality management, environmental management, occupational health and safety, energy management, and information security management systems. In addition, SIW is dedicated to achieving NET ZERO by offering eco-friendly products and services under our sustainable development plan.This includes the use of EAF technology to recycle raw materials, reducing wastewater discharge, and installing solar rooftops. SIW not only operates in line with international standards but also prioritizes environmental responsibility for a sustainable future. #SIW #SustainableIndustry #NETZERO #InternationalStandards
13-09-2024
Cost-effective?Service fees for wire testing by the Testing Service Center.Perfect for manufacturers or users of PC Wire and PC Strand who require quality test results according to various standards. With over 30 years of expertise, SIW’s lab specializes in prestressed steel wire quality testing.✔️ Convenient, Fast, and Cost-effective✔️ ISO/IEC 17025 certified by NATA (National Association of Testing Authorities, Australia)✔️ Detailed, Clear, and Traceable Reports at Every Step, with Analysis and Improvement Suggestions✔️ Modern Equipment with High Efficiency and Precision of Over 99.95%✔️ Flexible Testing Customization Based on Client Requirements, Including Specific TestsService Information:1. Fatigue Testing MachineBrand: Zwick Roell, Model: HA500Testing Standards Supported: AS/NZS 4672.1, AS/NZS 4672.2, BS 5896, LNEC E 542, LNEC E 453, ISO 15630 Part 3, TIS 95-2540, TIS 420-2540PC Wire: Maximum Load 500 kN, Sample Diameter 5 – 22 mmPC Strand: Maximum Load 500 kN, Sample Diameter 5 – 22 mmDeformed Bar: Maximum Load 500 kN, Sample Diameter 5 – 40 mm2. Relaxation Testing MachineTesting Standards Supported: AS/NZS 4672.1, AS/NZS 4672.2, ASTM A416/A416M, ASTM A421/A421M, ASTM A881, BS 5896, ISO 15630-3, JIS G3536, TIS 95-2540, TIS 420-2540PC Wire: Maximum Load 300 kN, Sample Diameter 4 – 9 mmPC Strand: Maximum Load 500 kN, Sample Diameter 9.3 – 18.0 mm Contact Us: >>Click<< Achieve quality steel wire standards effortlessly with testing services from SIW Testing Service Center Comprehensive steel wire testing services, including Fatigue Test, Relaxation Test, Tensile Test, Salt Spray Test, and Chemical Analysis, using advanced equipment with an accuracy rate of over 99.95% Convenient, cost-effective, and customizable services Let SIW help your steel wire meet international standards and exceed customer expectations. For more information: (+66)2-937-0060 Email: marketing@siw.co.th www.siw.co.th
26-05-2026
5 Reasons Why Quality Wire Mesh Requires Cold Drawn Wire ✔ Stronger and Higher Load Capacity The cold drawing process increases the wire’s strength and hardness. Cold drawn wire can use a smaller diameter while maintaining or exceeding the strength of larger conventional rebar/ wire, helping reduce costs. ✔ Precise and Consistent Grid Spacing Cold drawn wire has a consistent and accurate diameter, and it is welded using modern machinery, ensuring equal sheet and grid spacing according to engineering standards. Unlike to general rebar/ wire that may have higher dimensional variation, resulting in inconsistent grid spacing. ✔ Strong and Firm Welds with Certified Standards Manufactured using electrical resistance welding in factories, creating tight and durable weld joints. Better than manually tying reinforcing bars, providing greater strength and a cleaner appearance. ✔ Helps Reduce Concrete Cracking Our wire is manufactured and being certified by TIS 747-2564 and TIS 943-2564. Quality is reliable and can be inspected and verified. ✔ Easy Installation and Cost-Effective in the Long Run Suitable for concrete reinforcement, roads, parking lots, and structures requiring high durability. Helps reduce concrete cracking because the load is distributed evenly. Easy and fast installation, reducing construction time and labor costs compared to tying rebar individually. SIW Wire Mesh is manufactured to certified standards, delivering reliable performance for every project. 🏗️✨ Click >>HERE<< to See Our Product
We are relentless in our pursuit for excellence in product quality and innovation. We take pride in being able to anticipate your needs and provide tailored solutions for each of your requirements. We strive to exceed expectations.