This systematic raw material matching guide fully combines the material resource database inside our OEM factory supply chain system to teach brand buyers how to select suitable raw materials according to custom product usage scenarios, safety certification requirements, texture appearance demands and budget limits, our factory system stores complete test reports, batch supply cycles and unit price data of hundreds of metal, plastic, textile, silicone and food-grade raw material types, the engineering team will filter matching material options and provide physical material swatches for client confirmation after receiving product performance demand descriptions, all confirmed raw material specifications will be written into the OEM custom tech pack and become the unified incoming inspection standard for warehouse QC teams, the factory centralized material procurement system signs long-term supply contracts with qualified raw material suppliers to guarantee stable stock supply for repeated OEM orders, and all raw material batch inspection records are bound to corresponding customized product orders to realize full material traceability in the whole OEM production system and avoid material mixing or unqualified raw material entering mass production lines.