OrangeSea
CNC & Precision Engineering
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A complete list of all pages on the OrangeSea CNC website.

Main Pages

Home
OrangeSea CNC homepage — hero, services overview, gallery, and contact
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About
Company story, team, certifications, and values
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Services
All CNC machining and fabrication services overview
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CNC Manufacturing Services
Full guide to our CNC manufacturing capabilities from Shenzhen, China
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Gallery
Photo and video gallery of our work
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Get a Quote
Submit a free quote request — upload CAD files
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Contact
Contact form, phone, email, and location
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Our Process
From CAD file to finished part: DFM, machining, inspection, shipping
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Quality
CMM inspection, FAI reports and ISO 9001 certification
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Industries
CNC machining for aerospace, medical, automotive, robotics and more
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Materials
Metals and plastics we machine, with grades and finishes
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Blog
CNC machining guides and buyer resources
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Engineering Tools
Free calculators: quote estimator, tolerances, surface finish, unit converter
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Blog Articles

From CAD to Part: Our Complete CNC Machining Workflow
What actually happens between receiving your STEP file and shipping your finished parts? Follow a production part through every stage of OrangeSea CNC's workflow.
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Understanding Surface Finish Specifications: Ra, Rz, and Rq Explained
Surface finish symbols on engineering drawings are often specified without a full understanding of what they mean — or how they are measured. This guide demystifies Ra, Rz, Rq, and when to use each.
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How Tight Tolerances Are Achieved in Medical Device Manufacturing
Medical components operate inside the human body or in direct contact with life-sustaining systems. Explore the processes, equipment, and quality systems that make micron-level accuracy routine.
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Aluminium 6061 vs 7075: Which Should You Choose for Your Part?
Both are widely used, both machine beautifully — but 6061 and 7075 aluminium serve very different purposes. Understanding the differences saves cost and prevents field failures.
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5 Reasons Aerospace Companies Choose 5-Axis CNC Machining
Aerospace engineers demand the tightest tolerances in manufacturing. Here's why 5-axis CNC machining has become the gold standard for flight-critical components.
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CNC Manufacturing Services: A Complete Buyer's Guide
What CNC manufacturing services actually cover, how to evaluate a supplier, what documentation to demand, and why Shenzhen has become the world's leading source of precision CNC manufactured parts.
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Small Batch CNC Machining: How to Get Parts Made from 1 to 500 Pieces
Small batch CNC machining is one of the most misunderstood areas of precision manufacturing. Here is exactly how to order it, price it, and avoid the mistakes that cost engineers weeks of rework.
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CNC Turning Tolerances: How Tight Does Your Part Actually Need to Be?
Specifying tighter tolerances than your application needs is one of the most common — and most expensive — mistakes in CNC turning. This guide explains how to get it right.
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CNC Machining in China vs USA & Europe: 2026 Cost Comparison
What really drives CNC part cost, typical hourly-rate ranges by region, where China saves 30 to 60 percent and where it does not, plus a landed-cost worked example for 200 aluminum brackets.
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How to Vet a Chinese CNC Machining Supplier: 15-Point Checklist
A practical 15-point checklist for verifying a Chinese CNC machining supplier: business licence, ISO 9001, FAI and CMM reports, factory video calls, DFM feedback, trial orders, payment terms and the red flags that should stop you.
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Shipping CNC Machined Parts from Shenzhen: DDP, Air vs Sea, Duties Explained
Incoterms EXW, FOB and DDP in plain language, how to choose between express, air freight and sea, packaging for machined parts, HS code guidance, duty basics for the US, EU, UK and Australia, and what to do if parts arrive damaged.
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How to Prepare an RFQ for CNC Machined Parts (STEP Files, Drawings, Tolerances)
A complete RFQ gets priced fast and accurately; an incomplete one gets padded. Here is exactly what to send a CNC shop, the mistakes that inflate quotes, how DFM feedback works, and a copy-ready RFQ template.
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Low-Volume CNC Machining: When to Move from Prototype to Production
Prototype, bridge, and production runs are three different jobs. Learn how cost per part falls with quantity, when to switch to castings or molding, and what design freezes, fixtures, and FAI mean for batch consistency.
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