Guangzhou Fayuan human hair limited strictly selects the raw materials of black human hair wigs-transparent closure. We constantly check and screen all incoming raw materials by implementing an Incoming Quality Control - IQC. We take varies measurements to check against collected data. Once failed, we will send the defective or substandard raw materials back to suppliers.. To expand our Fayuan brand, we conduct a systematic examination. We analyze what product categories are suitable for brand expansion and we make sure these products can offer specific solutions for customers' needs. We also research different cultural norms in the countries we plan to expand into because we learn that foreign customers' needs are probably different from those of domestic.. To ensure that we meet the production goals of customers, our highly skilled service-oriented professionals will be available to help learn the details of products provided at Fayuan human hair. In addition to that, our dedicated service team will be sent for on-site technical support..