Queen Tung Co., Ltd.

queen tung co., ltd., established in 1973, has engaged in professional manufacturing of automation pneumatic and hydraulic precision parts. during 40 years, we have updated equipment and manufacturing technology. we has state-of-the-art composite milling machines, precise cnc grinding & horning machines, tig welding machines, injection molding machines, all kinds of special-purpose processing machines, a complete professional quality inspection equipment and the capability of complete secondary production processing, surface treatment as well as heat treatment. in 2001, we established tong hong electronic co., ltd. to design and manufacture electromagnetic coil. our capability is as follows: 1. accuracy is ±0.001mm and surface roughness is 0.8s~1.6s (japanese series cnc center less grinding and core grinding) 2. accuracy is ±0.01mm and surface roughness is 1.6s~3.2s (japanese cnc lathe / milling complex processing in one processing) 3. accuracy is ±0.03mm and surface roughness is 1.6s~