Our Blog
When Importing Custom Injection-Molded Parts from China, How Do I Request a Material Certificate of Analysis (COA) from My Supplier?
We have processed thousands of injection-molded part orders, and the question that comes up more than almost any other is this: where is the material documentation? Missing or fake COAs…
When Importing Custom Injection-Molded Parts from China, How Do I Confirm a Supplier Is Using Virgin Resin, Not Recycled Material?
We have audited hundreds of injection molding factories across China. One pattern comes up every time: resin substitution is not a rare exception — it is a routine cost-reduction practice.…
When Importing Custom Injection-Molded Parts from China, What Are the Most Commonly Used Injection Molding Materials?
Every week, our sourcing team reviews material declarations from Chinese injection molders — and we keep seeing the same problem. Buyers specify "ABS" or "nylon," the factory quotes accordingly, and…
How Can I Manage Quality Risk When Sheet Metal Fabrication and Surface Treatment Happen at Different Factories in China?
We see this problem every month. A buyer receives a batch of coated parts, finds adhesion failures or surface defects, and then both suppliers point fingers at each other. Nobody…
What Is the Approval Process for a Customer-Specified Color on Sheet Metal Parts Ordered from China?
Color disputes are one of the most common friction points we see in cross-border sheet metal orders. A client sends a Pantone number, production ships, and the parts arrive looking…
When Should I Use Screen Printing, Pad Printing, or Laser Marking on My Sheet Metal Parts from China?
We see this question come up on almost every control panel or enclosure project. The part arrives with the right dimensions, the right finish — and then the marking spec…
