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Factory legitimacy verification is an important step in supplier qualification and sourcing risk management. Before purchase orders are issued or deposits are paid, it is important to confirm whether a supplier is a legally registered and operational business with the production capability, quality systems, and operational controls necessary to fulfill […]

GB 6675 is China’s mandatory toy safety standard used to evaluate whether toys supplied within the Chinese market meet minimum safety and regulatory requirements for children’s products. The standard establishes technical requirements related to mechanical safety, physical hazards, chemical exposure, flammability, labeling, age grading, electrical safety considerations, and foreseeable misuse […]

Salt spray test requirements vary significantly depending on product application, coating system, material type, customer expectations, and intended service environment. A fastener used indoors may only require limited corrosion resistance, while automotive components, marine hardware, or outdoor furniture may require substantially higher performance expectations. There is no universal salt spray […]

During Production Inspection (DUPRO) is a quality control inspection conducted during the manufacturing process to verify whether products conform to approved specifications, workmanship requirements, production standards, and buyer expectations before production is completed. DUPRO inspection is commonly performed when approximately 20% to 80% of production has been completed, allowing quality […]

Silicone kitchen tools are widely used in household kitchens, commercial food preparation environments, restaurants, bakeries, and retail consumer markets due to their flexibility, heat resistance, and ease of cleaning. Common products include silicone spatulas, baking molds, cooking brushes, oven mitts, food tongs, spoons, ice trays, and collapsible kitchen accessories. Because […]

Hardness testing is used to evaluate a material’s resistance to indentation, deformation, and wear under controlled force. In metal manufacturing and quality control, two of the most widely used methods are Rockwell hardness testing and Vickers hardness testing. Each method applies force differently, uses different indenter designs, and serves different […]

PFAS compliance has become an important requirement across food packaging, consumer products, textiles, and industrial materials. Regulatory authorities in multiple markets are introducing stricter restrictions on per- and polyfluoroalkyl substances (PFAS) due to concerns related to environmental persistence, chemical migration, and long-term exposure risks. Ensuring PFAS compliance in the supply […]

UL certification is a product certification framework administered by UL Solutions, where products are evaluated against defined requirements and authorized to use specific UL Marks under controlled conditions. A claim that a product is “UL certified” indicates that the product or component has been assessed against an applicable standard and […]

Container Loading Supervision (CLS) is an on-site quality control inspection conducted during the loading of goods into a shipping container. The inspection focuses on verifying cargo condition, container condition, loading quantity, loading methods, packaging status, and container sealing before shipment departure. As part of supply chain quality control, container loading […]

Metal tensile strength testing is a mechanical evaluation method used to determine how a metal material responds to controlled tensile force until deformation and fracture occur. It provides measurable data on strength, ductility, and structural performance, which are critical for verifying whether metal components meet engineering, safety, and compliance requirements. […]