Linyi City Long Li Electronic Co., Ltd. is a high-tech enterprise�professional in manufacturing electrical connectors. The company has passed ISO9001 international quality system authentication, and been awarded as �credit enterprise�. Longli electronic pays much attention on cooperating with domestic university and colleges and scientific research institutions such as Shandong University, Shandong Institute of Science. There are 3senior engineers, 10 engineers and nearly 200 technical workers. Laying great emphasis on research and development, we have applied more than 30 patents and 5 of them are patent of invention. The company has various test equipment such as pressure-resistance tester, vibration table, high temperature test chamber, mass spectrograph, dynamometer, mating test machine and thickness tester, which meet requirement of testing performance of connectors. At present, the company has Q series circular connectors, FQ series, FON series waterproof connectors, SFX underwater circular connectors, MX series gas sealed connectors, military standard connectors, JT1 series mining connectors, glass sintered sealing power terminals, CB2, CD1 series rectangular connectors, CY PCB connectors, J30�J30J MD/MDM connectors, totally scores of major series with thousands of specific models. The products are widely used in aviation, navigation, weapons, national defense electronic engineering, military electric equipment, mine, telecommunication, oil drilling, locomotives, and power system. The company adheres to �people-oriented, standard-management, quality first and customer uppermost� principle, treasuring every opportunity for development and maintain the sound relations with customers.