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Discover why high-speed CNC machining is critical for manufacturing high-quality automotive lighting molds. This article explores how Guangdian Tech achieves micron-level precision to ensure perfect optical performance and faster delivery times for global automotive clients. Click to see our advanced manufacturing process in action. Read More

A practical 2025 engineering guide to insert molded parts for cars, written from a real manufacturer’s perspective. Learn how insert molding really works, how to choose plastics and metal inserts, key mold design rules, vertical vs. horizontal machines, and what quality control and thermal shock tests look like in real projects. Includes a detailed automotive headlamp case study and answers to common questions about cost, reliability, and supply of inserts. Guangdian Tech shares hands-on experience to help engineers and buyers develop safer, more reliable insert molded parts for automotive lighting and interior components. Read More

Guangdian Technology provides an in-depth guide to achieving high-precision mirror finish (SPI A-1/A-2) essential for automotive car light molds. This technical analysis explores the relationship between sandpaper grit selection and micro-level Surface Roughness (Ra/Sa) standards. We detail the strict process control measures required to manage sub-micron accuracy, eliminate common defects like the Orange Peel Effect, and ensure full compliance with international optical mold specifications. Discover how our rigorous QC and specialized polishing methods deliver the flawless surface quality critical for safety and aesthetic performance in high-value automotive lighting projects.

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