The technique committee cooperates with Suzhou Testing Instrument Factory, so we have stable and strong capacity for research and manufacture. Recently, we developed liquid nitrogen cooled fast temperature variation box, shock response spectrum mechanic amplifier with frequency up to 7000Hz, special shaker with acceleration at 700G; and bounce test table also was developed according to the demands of customers. We believe that the demands of customers are commands. In accordance with customer’s needs, we will try our best to develop kinds of testing equipments and methods.