titanium rack 1.Made of Purity industrial titanium material with excellent acid resistance and conductive. It would be better for hook made of red copper material which connects to current conducting rod. 2.Make sure the current transfers swimmingly or titanium rack will be burnt out caused by too small section, too large RI or over-heating.3.Make sure the current transfers swimmingly if the touch area between titanium rack and machine parts is too small. Titanium rack or machine parts will be burnt out caused by non-response local overheating of touch point.4.Machine parts are pressed from titanium rack and not dropped out the solution which is to bob up and down.5.In order to ensure products quality and streamline production, titanium rack should be designed according to parts shape and anodic oxidation section. Such as: The parts thickness below 0.6mm, parts with high dimension accuracy and high gloss finish, parts with hard anodic oxidation and parts couldnt rack on regular titanium rack.