A good of RF with axis connection device is need on temperature has must of resistance, General connection device are need in temperature difference big of situation Xia work, sometimes even is hundreds of degrees of temperature are is very normal of, parts not can because high temperature and was damage, low temperature General of are to after lingxialiushidu of temperature for test, now many of equipment are need in special of occasions Xia work, if appeared has problem will directly on equipment caused injury, and for humidity also has must of requirements, Connector also requires a certain degree of earthquake resistance and impact resistance, particularly in transport is particularly important in the process, which should not be ignored.