1) Discovery & Quotation (1-3 business days): Deep-dive meeting on your needs (market, function, budget). We analyze feasibility and provide a detailed proposal. 2) Design & Engineering (1-2 weeks): Our engineers create 2D/3D design renderings. We finalize specs (material, mechanism, color). Your approval is required here. 3) Prototyping & Testing (2-3 weeks): Making functional prototypes. Conducting in-house tests (durability, vibration, etc.). You evaluate live samples. 4) Pre-Production & Final Approval (2-3 weeks): We produce a small batch on the mass production line. You conduct a final audit. Your final sign-off triggers mass production. 5) Mass Production & Delivery (4+ weeks,order size dependent): Full-scale manufacturing, strict QC, final packaging. Arrangement of logistics.