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Shaft Parts
Our Capability is as follows:1. Accuracy is ±0.001mm and surface roughness is 0.8S~1.6S (Japanese series CNC center less grinding and core grinding)2. Accuracy is ±0.01mm and surface roughness is 1.6S~3.2S (Japanese CNC lathe / milling complex processing in one processing) 3. Accuracy is ±0.03mm and surface roughness is 1.6S~3.2S (Accuracy machine, drilling and threading, milled processing, angle cutting, and production)
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Pressure Control Valve
Our Capability is as follows:1. Accuracy is ±0.001mm and surface roughness is 0.8S~1.6S (Japanese series CNC center less grinding and core grinding)2. Accuracy is ±0.01mm and surface roughness is 1.6S~3.2S (Japanese CNC lathe / milling complex processing in one processing) 3. Accuracy is ±0.03mm and surface roughness is 1.6S~3.2S (Accuracy machine, drilling and threading, milled processing, angle cutting, and production)
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Filler Welding, Machinery, Other Welding Machinery.
Filler WeldingOur welding includes laser welding, TIG welding and filler welding, etc.Welding ProcessingWith professional technology and experience more than 40 years, we enable to complete various welding processing accurately by laser welding, TIG welding and filler welding.We can help to optimize your welding process variables, evaluate your current welding parameters and techniques and solve common welding problems by our skilled engineers and sophisticated craftsmanship.Queen Tung Co., Ltd. is a leading manufacturer of precision parts. Since 1973, we have designed and manufactured hydraulic parts, pneumatic parts, spool/shafts, valves and coils. We have also obtained ISO 9001:2008 and CE certification. All of our products worldwide are compiled with RoHS regulations during manufacturing process.  
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About Us

Queen Tung Co., Ltd. is a leading manufacturer of precision parts. Since 1973, we have designed and manufactured hydraulic parts, pneumatic parts, spool/shafts, valves and coils. We have also obtained ISO 9001:2008 and CE certification. All of our products worldwide are compiled with RoHS regulations during manufacturing process. Being a recognized company, we exceed the expectations of our customers, employees, and community. Standing ahead in quality is our philosophy. From concept to completion, every product manufactured at Queen Tung goes through strict inspection and testing throughout completed process according to SOP including final dimensional accuracy, performance, aesthetics, packaging and delivery. Therefore, our product quality excels in high precision, quality and performance. We take great pride in our relentless dedication to quality products and service. This mantra is why we are still serving satisfied clients worldwide after 40+ years.

Germany and Japan are well known for their advanced manufacturing machineries. We always purchase our manufacturing equipment from those countries. This enables us to manufacture high-precision parts with accuracy of ±0.001mm by having constantly purchased advanced machineries from Japan and inspection equipment from Germany, such as, composite milling machines, precision CNC grinding machines, boring mills, TIG welding machines, injection molding machines and all kinds of special-purpose processing machines, non-contact shaft measuring systems, and so on.

By utilizing 3D CAD/CAE to enhance our technical and simulation skills, our experienced in-house strong R&D team is constantly developing new products, improve existing ones, and refining manufacturing processes, and all members provide innovative, effective, and practical solutions to optimize manufacturing processes and quality.

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