Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. If you’ve ever looked at a metal part — a car transmission housing, a laptop hinge, or a power tool body — and wondered, “How…
Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. If you’ve ever wondered how those precision metal parts in your car, your power tools, or your smartphone are made — the answer usually starts…
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 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: The Right Material Makes All the Difference Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. For over 17 years, I have helped clients select the optimal materials for their Injection Molding Spare…
Introduction: The Right Partner Makes All the Difference Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve seen customers struggle with poor‑quality rotomolding molds — warped parts, short mold…
Introduction: The EV Revolution Raises the Bar Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past five years, I’ve seen the electric vehicle (EV) industry transform injection molding requirements. Traditional Automotive…
Introduction: Defects Cost Time and Money — Here’s How to Fix Them Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the past decade, I’ve troubleshot thousands of defective Injection Molded Parts —…
Introduction: The Evolution of Rotational Mold Materials 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 Molds — from large water tanks to…
Introduction: Understanding the Heart of Rotational Molding Hi, I’m Barry Zeng, a manufacturing engineer at Shanghai Yunyan Prototype & Mould Manufacture Factory. Over the years, I’ve designed and built many Rotational Molding Molds for clients across various industries, ranging from…