YAOSIYEEN

Apparatus for testing gas, liquids and solids; Cases for mobile phones; Control valves for regulating the flow of gases and liquids; Dust protective goggles; Electronic components in the nature of capacitors, connectors, filters, oscillators, relays, switches, transformers, resistors, semiconductors, integrated circuits, rectifiers, transistors; Flowmeters used in a wide variety of fields; Gas meters; Goggles for sports; Lighting devices for taking pictures; Measuring hoses for measuring temperature, pressure, quantity and concentration of fluids in hydraulic or pneumatic systems; Radon detectors; Safety goggles