... board: plywood, fiberboard, dense board ,plastic board and rubber board.3.Hole forms we can process are: round , ... etc.Applicable scope: 1, etching processing various kinds of metal, metal and alloy and stainless steel plate, strip, 2, thickness ... filter canister, filters, (2) electronic industry with metal plate, plate leakage, lead, lead frame, metal substrate, (3) precision optical and mechanical ...