1 Three channel feedback control system 2 Independent R&D system 3 Best after-sales service 4 Good hardness,wear ... and plane rectangular arc source adopts domestic leading level. Multi-channel feedback control system: the arc source control, pneumatic control, process ... ,TiC,ZrN,CrN,CrC,TiCN,TiALN,DLC and so on. 2 Application:Tools,Cutting tools,Drill,Cutter,High scale mold,Precision ...