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นี่คือเสียงตอบรับจากลูกค้าของเรา ขอขอบคุณ บริษัท โพส แอนด์ พรีคาส ที่ให้ความเชื่อมั่นและไว้วางใจผลิตภัณฑ์ของ บริษัท สยามลวดเหล็กฯ มายาวนานกว่า 20 ปี
01-01-2026
🎉 Happy New Year 2026 🎉Wishing you a year filled with happiness, success, and new opportunities.SIW sincerely thanks our valued customers and business partners for your continued trust and support.May 2026 be a year of growth and shared success for us all.#HappyNewYear2026 #SIW
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.
24-08-2026
🏗️ Choosing the right pile for the job is the first step toward a strong and reliable structure.✅ Prestressed Concrete Piles✅ Prestressed Spun Concrete Piles (Spun Piles)✅ Bored PilesEach type of pile is designed for different applications. Choosing the right one helps enhance structural strength while ensuring greater cost efficiency.hashtag#SIW hashtag#PrestressedConcrete hashtag#PCWire hashtag#PCStrand hashtag#Construction
26-08-2025
At SIW, our people are the driving force behind our success.Every wire we manufacture and every solution we deliver reflect the dedication, expertise, and collaborative spirit of the SIW family.Together, we create connections that strengthen industries and shape a better world.Miss Naiyana ThamnaoChief Human Resources Officer
06-06-2025
How Is PC Wire Used Differently in Post-Tension vs Pre-Tension Systems?PC Wire (Prestressed Concrete Wire) is a crucial material used to strengthen prestressed concrete. It is commonly applied in two major systems: Pre-tension and Post-tension. While they use similar materials, the method of application and the advantages of each system are distinctly different. Let’s explore the differences🔹 Pre-Tension (Before Concrete Pouring)In this system, PC Wire is tensioned before the concrete is poured into the mold. Once the wire is stretched to the required force, concrete is poured over it. After the concrete sets and gains strength, the tension is released, and the wire tries to return to its original state, which compresses the concrete.Ideal for: Factory-made precast elements such as floor planks, hollow-core slabs, and concrete beamsAdvantages: Quality can be easily controlled in a factory settingLimitations: Requires large formwork and transportation of finished components to the site🔹Post-Tension (After Concrete Pouring)In this method, ducts or sheaths are placed inside the formwork before concrete pouring. Once the concrete is cured, PC Wire is threaded through the ducts, then tensioned and anchored at both ends. Finally, the ducts are filled with grout to protect the steel and bond it to the concrete.Ideal for: Large-scale projects such as high-rise buildings, bridges, and flat slab systemsAdvantages: More design flexibility, thinner structural elements, material efficiencyLimitations: Requires skilled labor and strict on-site quality control*Both systems have unique strengths and trade-offs. Choosing the right one depends on project type, budget, and engineering requirements.At SIW, we manufacture high-quality PC Wire for prestressed concrete applications in both pre-tension and post-tension systems. Our products are certified with TIS standards and trusted in over 70 countries worldwide.hashtag#SIW hashtag#PCwire hashtag#posttension hashtag#pretension
29-07-2025
At SIW, quality is not just a standard — it's our promise.We take pride in producing high-quality products tailored to meet our customers’ unique needs.With a strong focus on precision and rigorous quality control, we ensure that our products empower you to build with confidence and excellence.Mr. Worachoke ChavengpojHead of Department-Production
06-01-2026
Hollow Core Slab VS Regular Slab: How to Choose for Cost-Effectiveness and Efficiency? 🏗️Hollow Core Slab is made from prestressed concrete using PC Wire and are carefully checked at the factory to meet standards. They are lighter than regular concrete floors, which makes them more cost-effective by reducing the weight on beams, columns, and foundations. Because they are factory-made, hollow core slab are quick to install, saving time on rebar work and speeding up construction.PC Wire from SIW is high-quality and made for prestressed concrete. It works for all types of hollow core slabs, from regular buildings to large projects, giving you confidence in the strength and safety of your structure 🏢✅#PCWire #PrestressedConcrete #SIW #ConcreteSlabs #Construction
20-01-2023
'ทำไมจึงต้องเลือกใช้สินค้าของสยามลวดฯ' มาดูวิสัยทัศน์ และแนวคิด ของคุณสรณีย์ ดีพันธุ์พงษ์, กรรมการผู้จัดการ บริษัท ยูไนเต็ดคอนสตรัคชั่นแมติเรียล จำกัด (UNICO) ผู้ผลิตเสาเข็มสปันเจ้าแรกในประเทศไทย เรามาฟังคำตอบ ความเชื่อมั่น ความไว้วางใจ จากลูกค้าคนสำคัญของเราพร้อมกันเลย
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.