Power shell 1.supply kinds of base and case for oscillator ,filter 2.certified by ISO 9001:2000 ... machines,bending machines,welding machinies, lathes, plate shearing machine and so on .3.Meterial:carbon steel(CRS or HRS,galvanized ... ,anodize,etc5.Usage Industries:construction industry, automobile industry, mechanical equipment and electronic industry,ect.6.Standard:OEM manufacturing as per customers ...