Direct answer: Zhengna Technology manufactures custom zinc alloy die casting lock housings from buyer drawings, with attention to tooling, shrinkage, chrome plating, surface appearance, thread or hole accuracy, and assembly fit.
| Buyer check | Why it matters |
|---|---|
| Alloy and wall thickness | Controls strength, flow, shrinkage, and die casting stability. |
| Tooling design | Affects parting line, ejector marks, porosity risk, and dimensions. |
| Chrome plating | Controls corrosion resistance, appearance, and post-plating fit. |
| Critical holes and faces | Guide CNC secondary machining or inspection plans. |
| Packaging | Prevents plating scratches and cosmetic defects. |
Include drawings, zinc alloy, surface finish, plating requirement, critical dimensions, annual volume, cosmetic standard, and packaging method.
Yes. CNC secondary machining may be needed for tight holes, threads, flat faces, or assembly interfaces.
Chrome plating adds thickness and affects appearance and fit, so dimensions should be reviewed with plating in mind.
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