X-Key is Successfully developed intrinsically safe industrial keyboard(
http://www.x-key.cc/Product.asp?big=93).The INTRINSICALLY SAFE INDUSTRIAL KEYBOARD are widely used for the safety monitoring systems, machinery /equipment control systems or automatic control systems of the machinery/equipment production lines in hazardous locations with explosive gases and dust in a wide variety of industries including Coal Mine， petroleum, chemical, light textile, pharmaceutics, mining machinery, metallurgy and electric power, etc.
