A good plastic mold factory must undergo rigorous product review in the early stage, followed by mold flow analysis and reasonable ranking. Generally, high-precision machining wire cutting is used first, followed by high-precision computer gongs and high-precision spark machining. Advanced grinding and milling machines, combined with experienced craftsmen to assemble molds, naturally produce a set of high-quality precision plastic molds. Without good machines, small workshops cannot produce good molds. Plastic mold factories have high-precision machines, and even inexperienced craftsmen cannot produce high-quality molds.