sourcing injection molding from China

Sourcing custom injection molding from China is a tooling and production programme rather than a single purchase. The buyer commits to a steel mold, a fixed material grade, a tolerance band and a supply relationship that runs for years, and most of the cost and risk are decided before the first purchase order is issued. A programme runs in a fixed sequence: supplier shortlist, NDA and drawing review, DFM report and moldflow study, quotation, tooling order, T1 samples, golden sample approval, then repeat production supported by FAI and CMM dimensional reports and AQL shipment inspection. A weak step surfaces later as a revised quotation, a delayed launch or a rejected shipment. This playbook covers the decisions that belong to the buyer: which supplier type to use, what an RFQ package must...