steel driver board welding 1.high accuracy 2.perfect performance,OEM ... low price small steel L-shape driver board welding machining product namedimensionstandardprocessing craftdriver board welding26*120*165mmholes:d23DINpunching after welding,galvanization ... such as valves ,shafts ,flanges ,and their accesories. equipped with complete set processing machines boring lathe ,miller ,punch press ,press ...