Frank Li

Starting as an apprentice at 17, Frank has mastered every station of the fabrication process—from laser cutting and bending to precision welding. He founded ShincoFab to give global clients direct access to an ISO9001-certified factory, eliminating trading company markups. On this blog, Frank shares expert insights on manufacturing optimization, cost reduction, and quality control for your custom metal projects.

Envelope
Frank
Electrical enclosure door with rubber compression seal
Frank

IP66 vs. IP67: Why a Higher Rating Isn’t Always Better

If you are trying to protect expensive electrical gear from water, you have probably seen the ratings IP66 and IP67. But which one do you actually need? In this guide, I will break down the exact differences between IP66 and IP67 in plain English, using real examples from our fabrication floor. I will show you

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Frank August 11, 2026
Precision CNC machined stainless steel components
Frank

Stainless Steel Passivation Explained: A Factory-Floor Guide by ShincoFab

Stainless steel passivation is a non-electrolytic chemical treatment that removes free iron deposits from the surface of machined parts to prevent rust. While stainless steel is tough, it isn’t naturally rust-proof right out of the machine. If you don’t apply this specific acid treatment, your expensive parts run a high risk of premature corrosion. In

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Frank August 8, 2026
Custom precision sheet metal plate and bracket
Frank

Nearshoring Precision Sheet Metal: A Strategic Guide for US Buyers

Relying on a single factory across the ocean is no longer a strategy. It is a massive risk. At ShincoFab, we have spent years helping companies fix broken supply chains and move their metal fabrication closer to home. On our factory floors, we have seen firsthand what works and what fails when moving production across

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Frank August 7, 2026
Welder uses TIG torch for detailed aluminum welding
Frank

How to Weld Aluminum: A Fabrication Expert’s Step-by-Step Guide

You want to weld aluminum, but you have probably heard it is a nightmare. People say it burns easily, warps fast, and makes weak joints. As a lead fabrication engineer here at ShincoFab, I oversee the welding of thousands of custom aluminum enclosures, brackets, and structural parts every year. I have both made and fixed

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Frank August 5, 2026
Worker rough grinding steel with an angle grinder
Frank

The 4-Step Weld Finishing Process (And How to Avoid Common Mistakes)

In my years managing the production floor at ShincoFab, our team has ground down thousands of welds across everything from heavy industrial chassis to delicate custom enclosures. I have seen the good, the bad, and the completely ruined when inspecting parts that come through our quality control (QC) bays. I know what it takes to

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Frank August 3, 2026
Anodized and brushed metal finish samples rack
Frank

Metal Finish Standards Explained: A Practical Guide for Engineers and Buyers

Here on the production floor at ShincoFab, I have reviewed thousands of engineering drawings, and our team sees the same common mistake constantly. Buyers and engineers over-specify their metal finish standards and unnecessarily strain their budgets on vanity. If you do not understand metal finish standards, you risk overpaying for parts. Even worse, if you

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Frank August 2, 2026
Box of high-quality finished sheet metal parts
Frank

How to Write a Comprehensive Sheet Metal RFQ (An Engineer’s Guide)

As a lead estimator and engineer at ShincoFab, I review dozens of sheet metal RFQs every week. Learning how to write a sheet metal RFQ correctly can save your company thousands of dollars in scrap metal and delays. A sheet metal RFQ (Request for Quote) is a procurement document that provides manufacturers with the 3D

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Frank August 1, 2026
Custom 6061 aluminum structural brackets with punched holes
Frank

How to Choose the Right Aluminum Grade for Sheet Metal Fabrication ？

ShincoFab engineers regularly see clients waste money and ruin viable designs by picking the wrong aluminum. Stop over-engineering your sheet metal parts. Exotic aerospace grades will not improve a standard bracket. Instead, they crack in our CNC press brakes and drain your project budget. The truth we tell our clients is that 90% of everyday

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Frank July 30, 2026

ShincoFab specializes in precision sheet metal fabrication, delivering high-quality custom metal solutions to clients worldwide with advanced technology and expert craftsmanship.

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