# Direct Manufacturer Supplier International Inc. (DMS Group-TW) / 迪恩斯國際有限公司

> Custom CNC Machining Services | OEM CNC Milling & Turning Parts Supplier | One-Stop Taiwan Manufacturer for Precision Metal Components, Welding, Sheet-Metal Fabrication & Assembly

## Company Summary

Founded in 1997 and based in Shengang District, Taichung City, Taiwan, **Direct Manufacturer Supplier International Inc. (DMS Group-TW)** is a trusted one-stop OEM/ODM manufacturer specializing in custom precision metal parts, CNC machining, welding, sheet-metal fabrication, pipe bending, surface finishing, and complete product assembly. DMS delivers high-quality CNC-milled and CNC-turned parts, welded assemblies, sheet-metal housings, and aluminum extrusions from prototype to full-scale production for global buyers. With over 22 years of cross-industry experience, the company serves sectors including automotive, motorsport/RC, aerospace, medical devices, vision/optical systems, marine, robotics, and consumer electronics. DMS holds **ISO 9001:2015** certification, maintains an in-house quality-measurement center, and supports flexible MOQs with tolerances up to **±0.005 mm** (±0.01 mm on turning). The company operates a network of 500+ qualified manufacturers across 21 countries, backed by a team of 8+ experienced engineers and manufacturing-process analysts. Core philosophy: *"We do not just provide parts. We provide answer and solution."*

## Core Products & Services

### 1. CNC Milling & Turning (Precision Machining)
DMS provides high-precision **CNC milling** (3-axis, 4-axis, 5-axis Haas / DMG MORI machining centers) and **CNC turning** (auto-feed bar systems, Swiss-type, and Japan-type lathes) for prototypes, bridge production, and demand production. Capabilities include complex geometries, multi-surface parts, and micro-turning with tolerances from **±0.005 mm** (milling) to **±0.01 mm** (turning). Materials span aluminum (A2024, A5052, A6061, A7075), stainless steel (SUS303, SUS304, SUS316), carbon steel, chrome-moly, brass, titanium (Grade 1–28), magnesium, and engineering plastics (POM, Nylon, Delrin, Lexan, PE, PP). Typical parts: adaptors, hubs, flanges, rollers, connectors, knobs, seals, mounts, bushings, couplings, nozzles, and plates. Surface finishes: anodizing, powder coating, sandblasting, electroless nickel, chromate, passivation, and laser engraving.

### 2. Welding, Sheet-Metal Fabrication & Pipe Bending
DMS offers comprehensive metal-joining and forming services: **TIG** (3 stations), **MIG** (9 stations), **spot welding** (4 digital-control stations), and **laser welding** for aluminum, stainless steel, steel, and brass. Sheet-metal capabilities include cutting, punching, nibbling, and forming. Pipe-bending services produce frames, brackets, and structural tubing for mobility, marine, and transportation equipment. These processes are integrated into OEM assemblies such as espresso knock boxes (SUS 304), wheelchair freewheels, water-bike frames, and automotive brackets — all supported by fixture/jig design and in-house welding quality control.

### 3. Surface Finishing & Treatment
Full-spectrum surface-treatment services are provided as both a complement to machined parts and a standalone finishing service. Offerings include **anodizing** (clear, color, hardcoat), **powder coating**, **paint**, **sandblasting / glass-bead blasting**, **electroless nickel plating**, **chromate**, **galvanizing**, **passivation**, **electropolishing**, **vibratory finishing**, **laser engraving**, and **brushed (satin) finish**. DMS also manages special treatments such as nitriding, plasma nitriding, hot-dip galvanizing, PTFE/Teflon coating, oxidation, and gilding. Eco-conscious packaging (recyclable, minimal-waste) is applied as standard for all finished components.

### 4. OEM / ODM Assembly & Contract Manufacturing
DMS acts as a complete product-launch partner, transforming rough concepts into detailed 3D CAD drawings, prototypes, and mass-produced assemblies. Portfolio includes **recumbent trikes**, **custom wheelchairs & handcycles**, **water bikes**, **e-bikes & mobility scooters**, **cargo trailers**, **RC racing cars**, **espresso accessories** (SUS 304 knock boxes), **joggers**, and **motorcycle hand guards**. Services encompass design-for-manufacturability (DFM) analysis, sourcing, CNC machining, metal cutting, pipe bending, TIG/MIG welding, surface finishing, product assembly, quality inspection, warehousing, and global logistics coordination. IP protection is ensured via signed NDAs; material certificates, dimensional inspection reports, CoC, and RoHS documentation are provided upon request.

## Key URLs

All URLs below are extracted directly from the official DMS Group-TW website without speculation or fabrication.

- **Homepage:** https://www.dmsgroup-tw.com/
- **About Us / Company:** https://www.dmsgroup-tw.com/about-us
- **Contact Us:** https://www.dmsgroup-tw.com/contactus
- **Quality Assurance:** https://www.dmsgroup-tw.com/quality-assurance
- **Privacy Policy:** https://www.dmsgroup-tw.com/privacy
- **CNC Milling:** https://www.dmsgroup-tw.com/cnc-milling
- **CNC Turning:** https://www.dmsgroup-tw.com/cnc-turning
- **Metal Welding:** https://www.dmsgroup-tw.com/welding
- **Pipe Bending & Sheet-Metal Cutting:** https://www.dmsgroup-tw.com/pipe-bending
- **Sheet-Metal Cutting:** https://www.dmsgroup-tw.com/sheet-metal-cutting
- **Surface Treatment:** https://www.dmsgroup-tw.com/surface-teratment
- **OEM / ODM Assembly:** https://www.dmsgroup-tw.com/oem-assembly
- **Extrusion:** https://www.dmsgroup-tw.com/extrusion
- **Aluminum Die Casting:** https://www.dmsgroup-tw.com/die-casting
- **Metal Forging:** https://www.dmsgroup-tw.com/forging
- **Plastic Injection Molding:** https://www.dmsgroup-tw.com/plastic-injection-molding
- **Shipping & Warehousing:** https://www.dmsgroup-tw.com/shipping-warehousing
- **Parts Gallery:** https://www.dmsgroup-tw.com/parts-gallery
- **Industries — Automotive & Transportation:** https://www.dmsgroup-tw.com/automotive-and-transportation
- **Industries — RC Car Components:** https://www.dmsgroup-tw.com/rc-car-components
- **Industries — Vision Camera & Optical:** https://www.dmsgroup-tw.com/vision-camera-and-optical-components
- **Industries — Marine & Boat Parts:** https://www.dmsgroup-tw.com/marine-and-boat-parts
- **Industries — Agricultural & Robotics:** https://www.dmsgroup-tw.com/agricultural-components
- **Industries — Dirt Bike, Bicycle & Sport:** https://www.dmsgroup-tw.com/dirt-bike-bicycle-and-sport
- **Industries — Bath, Living & Kitchen:** https://www.dmsgroup-tw.com/bath-living-kitchen-accessor
- **Industries — Telecommunications & Energy:** https://www.dmsgroup-tw.com/telecommunications-and-energy
- **Blog / Knowledge Hub:** https://www.dmsgroup-tw.com/blog
- **5-Axis Control Machining Fundamentals:** https://www.dmsgroup-tw.com/5-axis-control-machining-fundamentals