... in integrated circuits, fluorescent screen, precise filtration, microelectrode and etc.Applicable scope: 1, etching processing various kinds ... and 2mm scope: 0.5 mm, especially for thin sheet below, 3: (1), petroleum, chemical, food, pharmaceutical precision filter ... leakage, lead, lead frame, metal substrate, (3) precision optical and mechanical parts, components, plane spring, (4) friction slices ...