Fittings and Valves Since 1984; We, Unilok Corporation, are; producing UHP fittings, valvesDiaphragm, Bellows valves, cylinder connectors; filters, regulators and IGSIntegrated Gas System used in semiconductor fields; since 1984. Our product’s quality and reliability are recognized through customer’s satisfaction and results of many; projects which Unilok participated in. please; visit our, Semiconductor Industry ...