... board welding 1.high accuracy 2.perfect performance,OEM service offered 3.quick delivery 4.low price small steel L-shape driver board welding ... processing.such as valves ,shafts ,flanges ,and their accesories.equipped with complete set processing machines boring lathe ,miller ,punch press ,press ... )13771296349 tel (86-510)86521310 Fax( 86-510)86529579 steel L-shape driver board welding with holes