Quality Control
Author:管理员    Time:2023-05-16 14:28:35    Written words:【large】【middle】【small

Miracle Hill Industrial Co.,Ltd implements the ISO9001 quality system throughout all manufacturing processes and strictly controls product defect ratios per PPM standard.


The raw materials are sent to lab for analysis and strict inspection.

In Process 100% Quality control , sampling survey and random checking for the product performance.

The products are 100% tested & inspected before packing.

For the product returns, analyze the causes and recommend corrective measures to improve it.


1. R&D quality control

Before releasing a new model, strict quality control is applied throughout the R&D process including market research, product development, materials and components sourcing, sample production, pre-production, and mass-production.

2. Incoming material quality control

Global sourcing platform, qualified suppliers and optimized purchasing process ensure all components and raw materials conform to required specifications. Raw materials are sent to labs for analysis and strict inspection before being put into production.

3. Process quality control

Each stage of production is well planned and controlled to minimize the percentage of defects and make it easy to trace any defects that are discovered once the product gets to market. Full inspection of all parts combined with sample & random checking ensures product performance.

4. Finished Product Quality Control

Finished products are sent to the warehouse for 7 days storage where all products are fully tested and inspected before delivery. In addition, Miracle Hill provides a full satisfaction guarantee for its products.

5. After-sales service quality

control Comprehensive after-sales service system and integrated defects report-and-dealing procedure guarantee all complaints are handled timely and effectively.

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