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Appearance Inspection Film Appearance inspection film can be understood as"a comparable template that embodies quality standards".It does not directly participate in processing,but is used to quickly determine whether the product appearance is qualified.It is very common in quality inspection links...

Film Ruler Film Ruler is essentially a high-precision optical reference tool,commonly used for dimensional inspection,alignment calibration and accuracy verification.In simple terms,it can be understood as a"transparent ruler with precise scales",but its precision and manufacturing process are far ...