Introduction: The Heavyweight Champion of Metal Parts Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. You know those shiny metal parts in your car engine, your power tools, or your kitchen faucet? Chances…
Introduction: The Little Cap That Could (And Does, Billions of Times) Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Raise your hand if you’ve ever opened a plastic bottle — water, soda, shampoo,…
Introduction: The Day I Learned That CNC Doesn’t Forgive Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. I’ve been building injection molds for 12 years — long enough to know that a CNC…
Introduction: The Foundation of Quality Aluminum Castings Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past 17 years, I have designed and built hundreds of molds for casting aluminum — from…
Introduction: Quality Starts with the Mold Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. For over 17 years, I have designed, built, and optimized thousands of Injection Molds. A high‑quality mold is the…
Introduction: The Backbone of High-Volume Metal Parts Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the years, I’ve designed and built hundreds of high-performance tools, specifically focusing on the metal die casting…
Introduction: Your Trusted Partner in Precision Manufacturing Hi, I’m Barry Zeng, a senior manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. For over 12 years, our factory has delivered high-quality custom plastic injection molding solutions to clients across…
Introduction: The Foundation of Rotomolded Products Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve designed and built hundreds of Rotational Molding Molds — ranging from large water tanks…
Introduction: Why Silicone Molds Are Essential for Critical Applications Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve designed and produced hundreds of Silicone Molds for clients in medical…
Introduction: The Backbone of High‑Volume Metal Parts Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve designed and built hundreds of Die Casting Molds for clients in automotive, electronics,…