The product uses precision grain line flexible pin (twist needle), contact spacing 1.27mm. Row spacing of 1.1mm, with a small size and light weight, reliable connection, excellent electromagnetic shielding, insertion force is small, anti-vibration, impact resistance and other characteristics; product shell metal shell, core number including 9,15,21,25,31, 37,51,66,74,100 and other types. Insulation materials using PPS (thick PTH), to meet the high temperature, high strength and other characteristics; plug, socket with thread locking, orientation, anti-misuse and so on. Terminations are: crimping, welding, straight, bending, etc., of which crimping wire cross-sectional area of 0.7mm ²-0.15mm ² products suitable for small space, miniaturization, high reliability requirements of a variety of electronic and electrical systems; implementation General Specifications GJB2446A.