aluminum drive rocker of transmission piece 1.high accuracy 2.longer service life 3. ... machining non-standard machine parts: furcate aluminum drive rocker of transmission piece.name forked shaped aluminum drive rockermaterialalumimum 5052-0specification 30 ... as valves ,shafts ,flanges ,and their accesories.equipped with complete set processing machines:boring lathe ,miller ,punch press ,press ,engine ...