... design firms in Ningbo Service Range:1. Rapid Prototyping; sla/sls prototype2. CNC machining prototype3. Industrial Design4. Silicone mould; injection molding; resin mold and ... ! Key words : coor, industrial design, product design, product development , rapid prototype, rapid prototyping, prototyping, plastic prototyping, cnc machining, cnc machining parts, cnc prototype, nbkc, sample, 3d printing ...