Case Study: Fixing Corner Bursting in E-Flute Mailer Boxes
An E-flute mailer box for beauty packaging had a 14.2% corner-burst rate. Here is the engineering analysis and the shop-floor fix that brought it to zero.
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CSR, Sustainability and Community Work at Zhengyang
How Zhengyang Packaging reduces environmental impact, supports local education, and builds a responsible supply chain for international buyers.
Factory Capacity & Equipment: 120 Million Pieces Per Year
A transparent look at our Dongguan facility: 7 product lines, Heidelberg and Komori presses, monthly output and buyer lead times.
Certifications & Compliance: ISO 9001, FSC, CE-RoHS Explained
A practical breakdown of Zhengyang Packaging's certifications — what each standard covers, why it matters to B2B buyers, and how to verify authenticity.
Our 20-Year Journey in Custom Packaging
How Dongguan Zhengyang Packaging grew from a 2006 startup into a certified supplier serving Fortune 500 brands across three continents.
Case Study: Fixing Creasing in a One-Piece Folder Box
A 350 gsm coated one-piece folder box was jamming the auto-folder with an 18.5% rejection rate. Here is how the root cause was found and fixed.