Founded in 1997, LONGJI INDUSTRIAL (HK) LIMITED is a professional enterprise specializing in the design, production assembly of damper latch and the process of precision plastic electronic fittings with registered capital of HKD 3million, independent workshop of 3000 sqm, 260 employees and a group of senior technicians managers.

Our main manufacturing equipments contain 20 injection molding machines, 5 automatic oiling assembly machines, 2 oil injecting production lines, 2 laser carving machines, 5 high power ultrasonic drilling machines, 3 lathes, 4 milling machines, 4 grinding machines, 3 EDM machines and 1 machining center. Our main inspection equipments contain three-D coordinatograph, projector, adjustment force testing frame, height master, etc. .

We have got ISO9001 ISO14001Quality Environmental Management System Certificate and executed them strictly. We keep improving the quality of product at the same time of absorbing advanced technical experiences at home aboard. We have already taken the lead in the industry. The damper, with special prescription of silicone oil, can maintain its functions under-20oC to 70oC and satisfy ROHS demand in environmental protection. With excellent quality superior after-service, the product has won favorable reputations in the industry.