Should a buyer choose Korea-first or China-direct custom sock production?
Use the Korea-first route when sample ownership, QC checkpoints, packaging approval, documentation, and shipment assumptions need to stay in one review thread. Secondary Zhuji support can be reviewed when scale, sourcing, or program fit makes that route practical, but it should not become a lowest-price default.
Does SaySock hide China production support?
No. SaySock presents Korea-first direct sock production as the public acquisition path and keeps Zhuji production and inspection support as secondary program-fit context. A useful RFQ should state product type, quantity band, packaging, destination, and timing before the production route is narrowed.