HUAQING
Email: huaqingwj@21cn.com
| Quality Inspection Node | Applicable Testing Items for Home Hardware | |
| IQC (Incoming Quality Control) | Incoming Inspection | Composition Analysis (Stainless Steel, Zinc Alloy, Plastic Raw Materials); Surface Flaw Inspection |
| IPQC (In-Process Quality Control) | In-Process Inspection | Dimensional Accuracy (Stamping/Die-casting); Weld Strength; Plating Uniformity (Spot Checks) |
| OQC (Outgoing Quality Control) | Outgoing Inspection | Finished Product Appearance; Functional Testing; Packaging Integrity |
Our rigorous QC system ensures every piece of hardware meets international standards for durability, safety, and finish quality.
IQC, IPQC, OQC System — Three-stage inspection covering incoming material, production lines, and finished goods
100% Load Bearing Test — Every product tested at 1.5× rated load
72-Hour Aging Test — Extended environmental stress testing
48-Hour Salt Spray Test — Guaranteed rust resistance for humid environments
Dimensional Consistency — Precision-controlled for perfect fit
